Molecular Formula | C13H17BrO9 |
Molar Mass | 397.17 |
Density | 1.52 |
Melting Point | 80-110 °C(lit.) |
Boling Point | 388.6±42.0 °C(Predicted) |
Appearance | Morphological Crystalline Powder or Solid, color White to gray |
Storage Condition | Inert atmosphere,Store in freezer, under -20°C |
Stability | Moisture and Temperature Sensitive |
MDL | MFCD00061613 |
Use | The application of A- D-glucuronic acid methyl ester is also called acetyl bromide-α-D-glucuronic acid methyl ester. It can be used as a raw material to prepare D-glucuronic acid methyl ester first, and then acetylated to obtain 1,2,3, 4-tetra-O-acetyl-D-glucuronic acid methyl ester, and finally brominated to obtain A- D-glucuronic acid methyl ester. |
Hazard Symbols | Xi - Irritant |
Risk Codes | 36/37/38 - Irritating to eyes, respiratory system and skin. |
Safety Description | S22 - Do not breathe dust. S24/25 - Avoid contact with skin and eyes. |
WGK Germany | 3 |
FLUKA BRAND F CODES | 3-8-10-21 |
HS Code | 29189900 |
Add 1,2,3,4-tetra-O-acetyl-D-glucuronic acid methyl ester (3)(15.0g,4mmol) to the acetic acid solution of hydrogen bromide (the mass percentage of hydrogen bromide is 33%)(60mL) to remain stable at no more than 10 ℃, and then naturally raise the temperature to room temperature and stir for 2 hours. The reaction was concentrated to dry and dissolved with 100mL of ethyl acetate, then the organic phase was washed three times with an aqueous solution of sodium bicarbonate and dried and filtered with anhydrous sodium sulfate, and the filtrate was concentrated to dry addition of 50mL of petroleum ether to precipitate the solid. Filtered solids to obtain & Alpha;-D-glucuronic acid methyl ester (4)(yield 14.3g, yield 90%).
Irritant/Store Cold under -20oC
Solubility | Acetonitrile (Slightly), Chloroform (Slightly, Heated, Sonicated), Dichlorometha |
BRN | 96281 |