124831-36-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 124831-36-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,4,8,3 and 1 respectively; the second part has 2 digits, 3 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 124831-36:
(8*1)+(7*2)+(6*4)+(5*8)+(4*3)+(3*1)+(2*3)+(1*6)=113
113 % 10 = 3
So 124831-36-3 is a valid CAS Registry Number.
124831-36-3Relevant articles and documents
Synthesis of carbacephem antibiotics: Synthesis via Dieckmann reaction using phenyl esters to direct the regioselectivity of the cyclization
Jackson, Bill G.,Gardner, John P.,Heath, Perry C.
, p. 6317 - 6320 (2007/10/02)
β-Ketoesters useful for elaboration to carbacephems were synthesized from a variety of enantiomerically pure diesters. Use of phenyl esters to direct the regioselectivity was demonstrated.
