79641-83-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 79641-83-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,9,6,4 and 1 respectively; the second part has 2 digits, 8 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 79641-83:
(7*7)+(6*9)+(5*6)+(4*4)+(3*1)+(2*8)+(1*3)=171
171 % 10 = 1
So 79641-83-1 is a valid CAS Registry Number.
79641-83-1Relevant articles and documents
PHOSGENATION OF BENZYLTETRAHYDROISOQUINOLINES. A NEW METHOD OF BERBINES AND BERBIN-8-ONES SYNTHESIS
Stambach, J. F.,Jung, L.
, p. 169 - 172 (2007/10/02)
A novel synthesis of the berbine ring skeleton by the way of the berbin-8-ones is reported.Treatment of 1-benzyl-1,2,3,4-tetrahydroisoquinolines 1a-d with phosgene gas gave a new series of N-chloroformyl derivatives 2a-d.Intramolecular ring closure of the
