33741-82-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 33741-82-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,3,7,4 and 1 respectively; the second part has 2 digits, 8 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 33741-82:
(7*3)+(6*3)+(5*7)+(4*4)+(3*1)+(2*8)+(1*2)=111
111 % 10 = 1
So 33741-82-1 is a valid CAS Registry Number.
33741-82-1Relevant articles and documents
Synthesis of cephalosporins with substituted thiadiazoles directly attached to the C3-position. I. Synthesis of 3-(5-substituted-1,3,4-thiadiazol-2-yl)ceph-3-em derivatives
Sugawara,Masuya,Matsuo,Miki
, p. 2116 - 2128 (2007/10/02)
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Fluorinated cephalosporins
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, (2008/06/13)
Cephalosporins having a fluorine atom on the 3-methyl carbon are active antibiotics.