136436-83-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 136436-83-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,6,4,3 and 6 respectively; the second part has 2 digits, 8 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 136436-83:
(8*1)+(7*3)+(6*6)+(5*4)+(4*3)+(3*6)+(2*8)+(1*3)=134
134 % 10 = 4
So 136436-83-4 is a valid CAS Registry Number.
136436-83-4Relevant articles and documents
Asymmetric synthesis of 2-arylpropionic acids
Gonzalez
, p. 1353 - 1360 (1991)
The preparation of (S)-2-(6-methoxy-2-naphtyl)propionic acid (S-Naproxen) 1 and (S)-2-(4-isobutylphenyl)propionic acid (S-Ibuprofen) 2, based on asymmetric alkylation of oxazolidinones 9 and 14, is reported.
