133733-16-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 133733-16-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,3,7,3 and 3 respectively; the second part has 2 digits, 1 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 133733-16:
(8*1)+(7*3)+(6*3)+(5*7)+(4*3)+(3*3)+(2*1)+(1*6)=111
111 % 10 = 1
So 133733-16-1 is a valid CAS Registry Number.
133733-16-1Relevant articles and documents
syn-Selectivity in the Epoxidation of 1-(Cyclohex-2-enyl)-2-nitroimidazole mediated by Hydrogen Bonding
Threadgill, Michael D.,Webb, Paul
, p. 269 - 271 (1991)
Epoxidation of 1-(cyclohex-2-enyl)-2-nitroimidazole with 3-chloroperoxybenzoic acid occurs exclusively syn to the nitroimidazole in the absence of water; amines react only with the syn epoxide.
