122571-79-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 122571-79-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,2,5,7 and 1 respectively; the second part has 2 digits, 7 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 122571-79:
(8*1)+(7*2)+(6*2)+(5*5)+(4*7)+(3*1)+(2*7)+(1*9)=113
113 % 10 = 3
So 122571-79-3 is a valid CAS Registry Number.
122571-79-3Relevant articles and documents
An Efficient Synthesis of 13-Methylberbines
Mali, R. S.,Patil, Sharadbala D.
, p. 887 - 890 (2007/10/02)
Efficient synthesis of 13-methylberbines (9a and 9b) starting from 4-methylisochroman-3-ones (3 and 6) as key intermediates are described.Compound (3) is prepared by methylation of isochromanone (1) while 6 is obtained by heteroatom directed lithiation re