There will be a HazMat fee per item when shipping a dangerous goods. The HazMat fee will be charged to your UPS/DHL/FedEx collect account or added to the invoice unless the package is shipped via Ground service. Ship by air in Excepted Quantity (each bottle), which is up to 1g/1mL for class 6.1 packing group I or II, and up to 25g/25ml for all other HazMat items.
Type | HazMat fee for 500 gram (Estimated) |
Excepted Quantity | USD 0.00 |
Limited Quantity | USD 15-60 |
Inaccessible (Haz class 6.1), Domestic | USD 80+ |
Inaccessible (Haz class 6.1), International | USD 150+ |
Accessible (Haz class 3, 4, 5 or 8), Domestic | USD 100+ |
Accessible (Haz class 3, 4, 5 or 8), International | USD 200+ |
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CAS No. : | 1518-61-2 | MDL No. : | MFCD19228116 |
Formula : | C4H8O4 | Boiling Point : | - |
Linear Structure Formula : | - | InChI Key : | - |
M.W : | 120.10 | Pubchem ID : | - |
Synonyms : |
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Signal Word: | Danger | Class: | 8 |
Precautionary Statements: | P261-P264-P271-P280-P302+P352-P304+P340+P312-P305+P351+P338-P310-P332+P313-P362-P403+P233-P405-P501 | UN#: | 3261 |
Hazard Statements: | H315-H318-H335 | Packing Group: | Ⅲ |
GHS Pictogram: |
* 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 |
---|---|---|
1: 30 % Spectr. 2: 70 % Spectr. | With Oxone In water-d2 for 60h; Ambient temperature; pH 3 to 1; |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
With hydrogenchloride; sodium hydroxide; NaCN; In water; | EXAMPLE 4 Synthesis of S-3,4-dihydroxy butyric acid After dissolving 12.36 g of NaCN and 17.17 g of NaOH in 200 ml of water, 50 ml of aqueous solution of 22.2 g of R-3-chloro-1,2-propanediol was slowly dropped while stirring for 15 hours at 80 C. After reaction, while cooling the reaction solution to 0 C., 6N HCl was added to adjust the pH to 2.5, and the volatile matter was distilled away, and C2 H5 OH was added, and the precipitating solid matter was filtered. By distilling away C2 H5 OH from the filtrate, a residue was obtained, and it was refined by silica gel column chromatography (hexane: acetone=1:1), and finally 15.8 g of S-3,4-dihydroxy butyric acid was obtained. [alpha]D20 =-27.9 (C=0.96, CH3 OH). 1 H-NMR (CDCl3, CD3 OD): delta2.47-2.63 (m, 2H), 3.6 (d, 2H, J=5 Hz), 3.97-4.3 (m, 1H), 4.77-5.32 (m, 3H) IR (Cm-1):(neat) 3300, 2900, 1710, 1390, 1180, 1030. |