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CAS NO.503-38-8
Diphosgene Basic information |
Product Name: | Diphosgene |
Synonyms: | Carbonochloridic acid, trichloromethyl ester;Carbonochloridicacid,trichloromethylester;carbonochloridicacidtrichloromethylester;chloro-formicacitrichloromethylester;Difosgen;Diphosgen;DP;Formic acid, chloro-, trichloromethyl ester |
CAS: | 503-38-8 |
MF: | C2Cl4O2 |
MW: | 197.83 |
EINECS: | 207-965-9 |
Product Categories: | Pharmaceutical Intermediates;API Intermediate |
Mol File: | 503-38-8.mol |
Diphosgene Chemical Properties |
mp | -57 °C |
bp | 20 °C10 mm Hg(lit.) |
density | 1.64 |
refractive index |
n |
Fp | >110°C |
storage temp. | 2-8°C |
Water Solubility | may decompose |
Sensitive | Moisture Sensitive |
Merck | 14,3334 |
BRN | 970225 |
CAS DataBase Reference | 503-38-8(CAS DataBase Reference) |
NIST Chemistry Reference | Trichloromethyl chloroformate(503-38-8) |
EPA Substance Registry System | Carbonochloridic acid, trichloromethyl ester(503-38-8) |
Safety Information |
Hazard Codes | T+,Xi |
Risk Statements | 26/28-34-26/27/28-36/37/38 |
Safety Statements | 26-28-36/37/39-45-28A-36 |
RIDADR | UN 3277 6.1/PG 2 |
WGK Germany | 3 |
RTECS | LQ7350000 |
F | 8-10-19 |
HazardClass | 6.1 |
PackingGroup | II |
Hazardous Substances Data | 503-38-8(Hazardous Substances Data) |
MSDS Information |
Provider | Language |
---|---|
SigmaAldrich | English |
ACROS | English |
ALFA | English |
Diphosgene Usage And Synthesis |
Chemical Properties | clear colorless liquid |
General Description | Colorless liquid, odorless to fruity. |
Air & Water Reactions | Decomposes slowly in water or moist air (or when inhaled) to form very corrosive hydrogen chloride gas (hydrochloric acid) and carbon monoxide. |
Fire Hazard | Some may burn but none ignite readily. Vapors from liquefied gas are initially heavier than air and spread along ground. Some of these materials may react violently with water. Cylinders exposed to fire may vent and release toxic and/or corrosive gas through pressure relief devices. Containers may explode when heated. Ruptured cylinders may rocket. |
Diphosgene Preparation Products And Raw materials |
Preparation Products | Benzyl chloroformate-->Tribenuron methyl-->4-N-Boc-2-Methyl-piperazine-->Methidathion-->4-FLUOROBENZYL ISOCYANATE |