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157892-15-4

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157892-15-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 157892-15-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,7,8,9 and 2 respectively; the second part has 2 digits, 1 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 157892-15:
(8*1)+(7*5)+(6*7)+(5*8)+(4*9)+(3*2)+(2*1)+(1*5)=174
174 % 10 = 4
So 157892-15-4 is a valid CAS Registry Number.

157892-15-4Relevant articles and documents

α-Haloalkyl haloformates and related compounds. 2. Synthesis of dichloromethyl carbonates and their transformation to carbamates

Patonay,Hegedus,Mogyorodi,Zolnai

, p. 2507 - 2513 (1994)

Dichloromethyl carbonates, easily available upon treatment alcohols with dichloromethyl chloroformate, react with various amines to give carbamates in high yield under mild conditions. Extension of the reaction for the synthesis of oxazolones from 2-aminoalcohols is also demonstrated.

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