124831-44-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 124831-44-3 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, 4 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 124831-44:
(8*1)+(7*2)+(6*4)+(5*8)+(4*3)+(3*1)+(2*4)+(1*4)=113
113 % 10 = 3
So 124831-44-3 is a valid CAS Registry Number.
124831-44-3Relevant articles and documents
SYNTHESIS OF 3-(ALKYL AND ARYL)THIO-2-ISOCEPHEMS
Aszodi, Jozsef,Chantot, Jean-Francois,Collard, Jeannine,Teutsch, Georges
, p. 1061 - 1076 (2007/10/02)
Synthesis of 3-S-substituted isocephems has been carried out in a convergent way using readily available intermediates such as 4-mercaptomethylazetidinone 3 and chloropyruvates 4 prepared by the reaction of sulfenyl chlorides with t-butyl diazopyruvate.Du