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Structure of 658-27-5
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Search for reports by entering the product batch number.
Batch number can be found on the product's label following the word 'Batch'.
Search for reports by entering the product batch number.
Batch number can be found on the product's label following the word 'Batch'.
Search for reports by entering the product batch number.
Batch number can be found on the product's label following the word 'Batch'.
Search for reports by entering the product batch number.
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CAS No. : | 658-27-5 |
Formula : | C6H7FN2 |
M.W : | 126.13 |
SMILES Code : | NNC1=CC=CC(F)=C1 |
MDL No. : | MFCD00041261 |
InChI Key : | HFSXFDKOXKNGIA-UHFFFAOYSA-N |
Pubchem ID : | 581026 |
GHS Pictogram: | ![]() ![]() |
Signal Word: | Danger |
Hazard Statements: | H301-H315-H318-H335 |
Precautionary Statements: | P280-P301+P310+P330-P302+P352-P305+P351+P338+P310 |
Class: | 6.1 |
UN#: | 2811 |
Packing Group: | Ⅲ |
* All experimental methods are cited from the reference, please refer to the original source for details. We do not guarantee the accuracy of the content in the reference.
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
74.81% | General procedure: Substituted aniline (0.17mol) and aqueous solution of NaNO2 (71.0mL, 1.24mol) were successively added to aqueous hydrochloric acid (115mL) maintaining the temperature between 0 and 5C. The reaction mixture was stirred for 2h, alkalized to pH 6-7 with 12% w/v sodium carbonate solution, and the resulting diazonium salt solution was added drop-wise to sodium sulfite solution (443.0mL, 1.9mol) below 0C. And then the mixture was stirred at room temperature for a future 1h, concentrated hydrochloric acid (277.0mL) was added slowly, and heated to 100C for 3h. The mixture was then cooled and filtered, and dried to give compounds 12a-e. | |
General procedure: Substituted aniline 4a-4s (50 mmol) was dissolved in the 50 mL HCl (18%, aqueous) in the icebath. NaNO2 (50 mmol) dissolved in 50 mL water was added dropwise. The reaction mixture wasstirred for 1 h to obtain a clear solution. Then the solution of SnCl2 (0.1 mol) in 30 mL of concentratedHCl was added dropwise at 0 C. The mixture was stirred at room temperature for 2 h. Afterwards,the mixture was extracted with 50 mL EtOAc and the organic impurities were discarded. Then thesolution was basified with NaOH (40%, aqueous) until it reached pH 7.0. The reaction mass wasextracted with EtOAc three times. Finally, substituted phenylhydrzine 5a-5s was afforded after beingvapored under reduced pressure (in 55%-80% yield) [12]. | ||
22.1 g | A process for the preparation of 3-fluorophenylhydrazine hydrochloride, comprising the steps of: [0019] diazotization [0020] was added in a 1 L three-necked flask 50 g of 3-fluoroaniline and 150 ml of 37% concentrated hydrochloric acid, Cool with ice salt to 2 C 35% aqueous sodium nitrite solution was added with stirring, The temperature was maintained at 2 C for 1 hour.reduction [0022] To the reaction solution was added 37 ml of concentrated hydrochloric acid (450 ml), 450 ml of water and 120 g of zinc powder, and the temperature was maintained at 18 C To complete reaction, the reaction solution becomes gray and then add 20% sodium hydroxide solution to the reaction solution PH value of 10,5 C insulation 1 Hour, precipitation of crystals, filter was 26. 6g 3-fluorophenylhydrazine crude. [0023] purification [0024] A crude product of 26. 6 g of 3-fluorophenylhydrazine was dissolved in 532 g of water, heated to 60 C to completely dissolve, and then Charcoal decolorization for 20 minutes, hot and filtered to a colorless filtrate, 5 C insulation for 1 hour, precipitation of crystals, filtration was 22. lg 3 - fluorophenylhydrazine Pure. |
292 g | (1) Diazotization: 10 g of a three-necked flask was added with 500 g of 3-fluoroaniline and 1500 ml of 37% concentrated hydrochloric acid, cooled with ice salt to 2 C, and 857 g of 35% aqueous solution of sodium nitrite was added with stirring. The temperature was maintained at 0 to 5 C for 1.5 hours. (2) Reduction: To the reaction solution was added 730 ml of 37% concentrated hydrochloric acid, 730 ml of water and 480 g of zinc powder, the reaction was maintained at a temperature between 18 C and the reaction was completed. The reaction liquid becomes off-white. Then 30% sodium hydroxide solution was added to the reaction solution to adjuste the pH value of 10.5 for 2 hours, crystals were precipitated and filtered to obtain crude 292 g 3-fluorophenylhydrazine. (3) Purification: A crude product of 292 g of 3-fluorophenylhydrazine was dissolved in 5840 g of water, heated to 60 C to completely dissolve, then right amount of activated carbon was added, decolorized for 20 minutes, hot-filtered at 5C for 2 hours to a colorless filtrate, crystallized, and filtered to give 236 g of pure 3-fluorophenylhydrazine. (4) Salt: A pure product of 236 g of 3-fluorophenylhydrazine was dissolved in 408 ml of 40% sulfuric acid, crystals were precipitated by stirring at 65 C to the reaction solution, cooled to 20 C, filtered, the filter cake was washed with acetone and dried to obtain 3-fluorophenylhydrazine sulfate finished product 379 g, Content of 99.3%,Yield 42.7%. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
88% | 2,6-di-tert-butyl-4-methylpyridine; In toluene; for 36h;Heating / reflux; | EXAMPLE 78 Preparation of 2-(3-Fluorophenyl)-6-methyl-1,2,5,6-tetrahydro-1,2,5,6,7-pentaza-as-indacene-3,4-dione A suspension of ethyl 4-chloro-1-methyl-6-trifluoromethanesulfonyloxy-1H-pyrazolo[3,4-b]pyridine-5-carboxylate (524 mg, 2.05 mmol) in toluene is treated with <strong>[658-27-5]3-fluorophenyl hydrazine</strong> (651 mg, 5.13 mmol) and a catalytic amount of 2,6-di-t-butyl-4-methylpyridine, heated at reflux temperature for 36 h, cooled to room temperature and filtered.The filtercake is washed with cold toluene and dried in vacuo to give the 4-hydrazinyl intermediate as a white powder, 624 mg (88% yield).This white powder (550 mg, 1.59 mmol) is suspended in THF, treated with NaH (60% in oil, 187 mg, 5.58 mmol), heated at reflux temperature for 24 h, cooled to room temperature, quenched carefully with 10% HCl, diluted with EtOAc and filtered.The filtercake is washed sequentially with water and EtOAc and air-dried to afford the title product as a white powder, 391 mg (83% yield, 73% yield over 2 steps), identified by HNMR and mass spectral analyses. |
Tags: 658-27-5 synthesis path| 658-27-5 SDS| 658-27-5 COA| 658-27-5 purity| 658-27-5 application| 658-27-5 NMR| 658-27-5 COA| 658-27-5 structure
Precautionary Statements-General | |
Code | Phrase |
P101 | If medical advice is needed,have product container or label at hand. |
P102 | Keep out of reach of children. |
P103 | Read label before use |
Prevention | |
Code | Phrase |
P201 | Obtain special instructions before use. |
P202 | Do not handle until all safety precautions have been read and understood. |
P210 | Keep away from heat/sparks/open flames/hot surfaces. - No smoking. |
P211 | Do not spray on an open flame or other ignition source. |
P220 | Keep/Store away from clothing/combustible materials. |
P221 | Take any precaution to avoid mixing with combustibles |
P222 | Do not allow contact with air. |
P223 | Keep away from any possible contact with water, because of violent reaction and possible flash fire. |
P230 | Keep wetted |
P231 | Handle under inert gas. |
P232 | Protect from moisture. |
P233 | Keep container tightly closed. |
P234 | Keep only in original container. |
P235 | Keep cool |
P240 | Ground/bond container and receiving equipment. |
P241 | Use explosion-proof electrical/ventilating/lighting/equipment. |
P242 | Use only non-sparking tools. |
P243 | Take precautionary measures against static discharge. |
P244 | Keep reduction valves free from grease and oil. |
P250 | Do not subject to grinding/shock/friction. |
P251 | Pressurized container: Do not pierce or burn, even after use. |
P260 | Do not breathe dust/fume/gas/mist/vapours/spray. |
P261 | Avoid breathing dust/fume/gas/mist/vapours/spray. |
P262 | Do not get in eyes, on skin, or on clothing. |
P263 | Avoid contact during pregnancy/while nursing. |
P264 | Wash hands thoroughly after handling. |
P265 | Wash skin thouroughly after handling. |
P270 | Do not eat, drink or smoke when using this product. |
P271 | Use only outdoors or in a well-ventilated area. |
P272 | Contaminated work clothing should not be allowed out of the workplace. |
P273 | Avoid release to the environment. |
P280 | Wear protective gloves/protective clothing/eye protection/face protection. |
P281 | Use personal protective equipment as required. |
P282 | Wear cold insulating gloves/face shield/eye protection. |
P283 | Wear fire/flame resistant/retardant clothing. |
P284 | Wear respiratory protection. |
P285 | In case of inadequate ventilation wear respiratory protection. |
P231 + P232 | Handle under inert gas. Protect from moisture. |
P235 + P410 | Keep cool. Protect from sunlight. |
Response | |
Code | Phrase |
P301 | IF SWALLOWED: |
P304 | IF INHALED: |
P305 | IF IN EYES: |
P306 | IF ON CLOTHING: |
P307 | IF exposed: |
P308 | IF exposed or concerned: |
P309 | IF exposed or if you feel unwell: |
P310 | Immediately call a POISON CENTER or doctor/physician. |
P311 | Call a POISON CENTER or doctor/physician. |
P312 | Call a POISON CENTER or doctor/physician if you feel unwell. |
P313 | Get medical advice/attention. |
P314 | Get medical advice/attention if you feel unwell. |
P315 | Get immediate medical advice/attention. |
P320 | |
P302 + P352 | IF ON SKIN: wash with plenty of soap and water. |
P321 | |
P322 | |
P330 | Rinse mouth. |
P331 | Do NOT induce vomiting. |
P332 | IF SKIN irritation occurs: |
P333 | If skin irritation or rash occurs: |
P334 | Immerse in cool water/wrap n wet bandages. |
P335 | Brush off loose particles from skin. |
P336 | Thaw frosted parts with lukewarm water. Do not rub affected area. |
P337 | If eye irritation persists: |
P338 | Remove contact lenses, if present and easy to do. Continue rinsing. |
P340 | Remove victim to fresh air and keep at rest in a position comfortable for breathing. |
P341 | If breathing is difficult, remove victim to fresh air and keep at rest in a position comfortable for breathing. |
P342 | If experiencing respiratory symptoms: |
P350 | Gently wash with plenty of soap and water. |
P351 | Rinse cautiously with water for several minutes. |
P352 | Wash with plenty of soap and water. |
P353 | Rinse skin with water/shower. |
P360 | Rinse immediately contaminated clothing and skin with plenty of water before removing clothes. |
P361 | Remove/Take off immediately all contaminated clothing. |
P362 | Take off contaminated clothing and wash before reuse. |
P363 | Wash contaminated clothing before reuse. |
P370 | In case of fire: |
P371 | In case of major fire and large quantities: |
P372 | Explosion risk in case of fire. |
P373 | DO NOT fight fire when fire reaches explosives. |
P374 | Fight fire with normal precautions from a reasonable distance. |
P376 | Stop leak if safe to do so. Oxidising gases (section 2.4) 1 |
P377 | Leaking gas fire: Do not extinguish, unless leak can be stopped safely. |
P378 | |
P380 | Evacuate area. |
P381 | Eliminate all ignition sources if safe to do so. |
P390 | Absorb spillage to prevent material damage. |
P391 | Collect spillage. Hazardous to the aquatic environment |
P301 + P310 | IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician. |
P301 + P312 | IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell. |
P301 + P330 + P331 | IF SWALLOWED: Rinse mouth. Do NOT induce vomiting. |
P302 + P334 | IF ON SKIN: Immerse in cool water/wrap in wet bandages. |
P302 + P350 | IF ON SKIN: Gently wash with plenty of soap and water. |
P303 + P361 + P353 | IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower. |
P304 + P312 | IF INHALED: Call a POISON CENTER or doctor/physician if you feel unwell. |
P304 + P340 | IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing. |
P304 + P341 | IF INHALED: If breathing is difficult, remove victim to fresh air and keep at rest in a position comfortable for breathing. |
P305 + P351 + P338 | IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. |
P306 + P360 | IF ON CLOTHING: Rinse Immediately contaminated CLOTHING and SKIN with plenty of water before removing clothes. |
P307 + P311 | IF exposed: call a POISON CENTER or doctor/physician. |
P308 + P313 | IF exposed or concerned: Get medical advice/attention. |
P309 + P311 | IF exposed or if you feel unwell: call a POISON CENTER or doctor/physician. |
P332 + P313 | IF SKIN irritation occurs: Get medical advice/attention. |
P333 + P313 | IF SKIN irritation or rash occurs: Get medical advice/attention. |
P335 + P334 | Brush off loose particles from skin. Immerse in cool water/wrap in wet bandages. |
P337 + P313 | IF eye irritation persists: Get medical advice/attention. |
P342 + P311 | IF experiencing respiratory symptoms: call a POISON CENTER or doctor/physician. |
P370 + P376 | In case of fire: Stop leak if safe to Do so. |
P370 + P378 | In case of fire: |
P370 + P380 | In case of fire: Evacuate area. |
P370 + P380 + P375 | In case of fire: Evacuate area. Fight fire remotely due to the risk of explosion. |
P371 + P380 + P375 | In case of major fire and large quantities: Evacuate area. Fight fire remotely due to the risk of explosion. |
Storage | |
Code | Phrase |
P401 | |
P402 | Store in a dry place. |
P403 | Store in a well-ventilated place. |
P404 | Store in a closed container. |
P405 | Store locked up. |
P406 | Store in corrosive resistant/ container with a resistant inner liner. |
P407 | Maintain air gap between stacks/pallets. |
P410 | Protect from sunlight. |
P411 | |
P412 | Do not expose to temperatures exceeding 50 oC/ 122 oF. |
P413 | |
P420 | Store away from other materials. |
P422 | |
P402 + P404 | Store in a dry place. Store in a closed container. |
P403 + P233 | Store in a well-ventilated place. Keep container tightly closed. |
P403 + P235 | Store in a well-ventilated place. Keep cool. |
P410 + P403 | Protect from sunlight. Store in a well-ventilated place. |
P410 + P412 | Protect from sunlight. Do not expose to temperatures exceeding 50 oC/122oF. |
P411 + P235 | Keep cool. |
Disposal | |
Code | Phrase |
P501 | Dispose of contents/container to ... |
P502 | Refer to manufacturer/supplier for information on recovery/recycling |
Physical hazards | |
Code | Phrase |
H200 | Unstable explosive |
H201 | Explosive; mass explosion hazard |
H202 | Explosive; severe projection hazard |
H203 | Explosive; fire, blast or projection hazard |
H204 | Fire or projection hazard |
H205 | May mass explode in fire |
H220 | Extremely flammable gas |
H221 | Flammable gas |
H222 | Extremely flammable aerosol |
H223 | Flammable aerosol |
H224 | Extremely flammable liquid and vapour |
H225 | Highly flammable liquid and vapour |
H226 | Flammable liquid and vapour |
H227 | Combustible liquid |
H228 | Flammable solid |
H229 | Pressurized container: may burst if heated |
H230 | May react explosively even in the absence of air |
H231 | May react explosively even in the absence of air at elevated pressure and/or temperature |
H240 | Heating may cause an explosion |
H241 | Heating may cause a fire or explosion |
H242 | Heating may cause a fire |
H250 | Catches fire spontaneously if exposed to air |
H251 | Self-heating; may catch fire |
H252 | Self-heating in large quantities; may catch fire |
H260 | In contact with water releases flammable gases which may ignite spontaneously |
H261 | In contact with water releases flammable gas |
H270 | May cause or intensify fire; oxidizer |
H271 | May cause fire or explosion; strong oxidizer |
H272 | May intensify fire; oxidizer |
H280 | Contains gas under pressure; may explode if heated |
H281 | Contains refrigerated gas; may cause cryogenic burns or injury |
H290 | May be corrosive to metals |
Health hazards | |
Code | Phrase |
H300 | Fatal if swallowed |
H301 | Toxic if swallowed |
H302 | Harmful if swallowed |
H303 | May be harmful if swallowed |
H304 | May be fatal if swallowed and enters airways |
H305 | May be harmful if swallowed and enters airways |
H310 | Fatal in contact with skin |
H311 | Toxic in contact with skin |
H312 | Harmful in contact with skin |
H313 | May be harmful in contact with skin |
H314 | Causes severe skin burns and eye damage |
H315 | Causes skin irritation |
H316 | Causes mild skin irritation |
H317 | May cause an allergic skin reaction |
H318 | Causes serious eye damage |
H319 | Causes serious eye irritation |
H320 | Causes eye irritation |
H330 | Fatal if inhaled |
H331 | Toxic if inhaled |
H332 | Harmful if inhaled |
H333 | May be harmful if inhaled |
H334 | May cause allergy or asthma symptoms or breathing difficulties if inhaled |
H335 | May cause respiratory irritation |
H336 | May cause drowsiness or dizziness |
H340 | May cause genetic defects |
H341 | Suspected of causing genetic defects |
H350 | May cause cancer |
H351 | Suspected of causing cancer |
H360 | May damage fertility or the unborn child |
H361 | Suspected of damaging fertility or the unborn child |
H361d | Suspected of damaging the unborn child |
H362 | May cause harm to breast-fed children |
H370 | Causes damage to organs |
H371 | May cause damage to organs |
H372 | Causes damage to organs through prolonged or repeated exposure |
H373 | May cause damage to organs through prolonged or repeated exposure |
Environmental hazards | |
Code | Phrase |
H400 | Very toxic to aquatic life |
H401 | Toxic to aquatic life |
H402 | Harmful to aquatic life |
H410 | Very toxic to aquatic life with long-lasting effects |
H411 | Toxic to aquatic life with long-lasting effects |
H412 | Harmful to aquatic life with long-lasting effects |
H413 | May cause long-lasting harmful effects to aquatic life |
H420 | Harms public health and the environment by destroying ozone in the upper atmosphere |
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