1421948-17-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1421948-17-5 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,4,2,1,9,4 and 8 respectively; the second part has 2 digits, 1 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 1421948-17:
(9*1)+(8*4)+(7*2)+(6*1)+(5*9)+(4*4)+(3*8)+(2*1)+(1*7)=155
155 % 10 = 5
So 1421948-17-5 is a valid CAS Registry Number.
1421948-17-5Relevant academic research and scientific papers
A concise formal synthesis of (-)-hamigeran B
Jiang, Biao,Li, Ming-Ming,Xing, Ping,Huang, Zuo-Gang
, p. 871 - 873 (2013/03/28)
A concise and efficient formal synthesis of (-)-hamigeran B is reported. The critical intermediate was synthesized from 3-methoxy-5-methylphenyl trifluoromethanesulfonate with an 11-steps 7.2% total yield route. The chiral quaternary carbon was efficientl
