74694-51-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 74694-51-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,4,6,9 and 4 respectively; the second part has 2 digits, 5 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 74694-51:
(7*7)+(6*4)+(5*6)+(4*9)+(3*4)+(2*5)+(1*1)=162
162 % 10 = 2
So 74694-51-2 is a valid CAS Registry Number.
74694-51-2Relevant articles and documents
Synthesis of 7-Oxo-3-oxa-1-azabicycloheptane-2-carboxylates: Analogues of Clavulanic Acid
Brennan, John,Richardson, Geoffrey,Stoodley, Richard J.
, p. 49 (2007/10/02)
4-Iodomethylazetidin-2-one is converted into the title compounds when treated sequentially with glyoxylic acid esters and sodium hydride.