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. : | 29655-79-6 | MDL No. : | MFCD00831071 |
Formula : | C8H13NO5 | Boiling Point : | - |
Linear Structure Formula : | - | InChI Key : | WFXMDHFQXBWTSB-UHFFFAOYSA-N |
M.W : | 203.19 | Pubchem ID : | 2779372 |
Synonyms : |
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Signal Word: | Danger | Class: | 9 |
Precautionary Statements: | P260-P264-P273-P301+P312-P305+P351+P338-P314 | UN#: | 3082 |
Hazard Statements: | H302-H319-H372-H410 | 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 |
---|---|---|
51% | With triethylamine In dichloromethane | Example 2 Ii; Compound 4 was prepared according to the Ref: J. Hetero. Chem. 1995, 32, 1693-1702. Then, it was reduced by NaBH4ZLiCl in ethanol solution. Further oxidation by Dess-Martin reagent gave the desired aldehyde 6 in 25 percent overall two-step yield. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
60% | With ammonium acetate In tetrahydrofuran at 66℃; for 8 h; | General procedure: To the solution of isopropyl glyoxylate (1.28 g, 11 mmol) in THF (50 mL), ammonium acetate (3 equiv., 2.55 g, 33 mmol) was added and refluxed for 8 h. The solvent was evaporated under vacuum and product was obtained on purification through column chromatography on silica gel. |