123731-31-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 123731-31-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,3,7,3 and 1 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 123731-31:
(8*1)+(7*2)+(6*3)+(5*7)+(4*3)+(3*1)+(2*3)+(1*1)=97
97 % 10 = 7
So 123731-31-7 is a valid CAS Registry Number.
123731-31-7Relevant articles and documents
ASYMMETRIC TOTAL SYNTHESES OF (+)- AND (-)-PULO'UPONE
Sugahara, Tsutomu,Iwata, Takashi,Yamaoka, Miyako,Takano, Seiichi
, p. 1821 - 1824 (2007/10/02)
Asymmetric total syntheses of both enantiomers of marine mollusk metabolite pulo'upone 1 have been achieved by Evans' asymmetric Diels-Alder reaction.
