500-31-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 500-31-2 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 5,0 and 0 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 500-31:
(5*5)+(4*0)+(3*0)+(2*3)+(1*1)=32
32 % 10 = 2
So 500-31-2 is a valid CAS Registry Number.
500-31-2Relevant articles and documents
Synthesis of trifluoroethyl ethers from 2,2,2-trifluoroethyl chloride (HCFC-133a) in high temperature aqueous medium
Wu, Kai,Chen, Qing-Yun
, p. 79 - 83 (2007/10/03)
Treatment of 2,2,2-trifluoroethyl chloride (HCFC-133a) with alcohols (phenols) and aqueous KOH in autoclave at 240-280 C gives the corresponding 2,2,2-trifluoroethyl (2-chloro-1,1-difluoroethyl) ethers in good yields.
