133648-72-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 133648-72-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,3,6,4 and 8 respectively; the second part has 2 digits, 7 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 133648-72:
(8*1)+(7*3)+(6*3)+(5*6)+(4*4)+(3*8)+(2*7)+(1*2)=133
133 % 10 = 3
So 133648-72-3 is a valid CAS Registry Number.
133648-72-3Relevant articles and documents
Verapamil analogues with restricted molecular flexibility
Dei,Romanelli,Scapecchi,Teodori,Chiarini,Gualtieri
, p. 2219 - 2225 (2007/10/02)
Three analogues with restricted flexibility were designed to study the active conformation of verapamil during interaction with the slow calcium channel. Thus cis- and trans-1-(3,4-dimethoxyphenyl)-4-[N-[2-(3,4-dimethoxyphenyl)ethyl]-N-me thylamino]-r-1-c