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143677-50-3

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143677-50-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 143677-50-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,3,6,7 and 7 respectively; the second part has 2 digits, 5 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 143677-50:
(8*1)+(7*4)+(6*3)+(5*6)+(4*7)+(3*7)+(2*5)+(1*0)=143
143 % 10 = 3
So 143677-50-3 is a valid CAS Registry Number.

143677-50-3Relevant articles and documents

Synthese, etude theorique et evaluation biologique de derives du 4-amino-4H-1,2,4-triazole analogues des antibiotiques β-lactamiques

Pirotte, B,Dive, G,Delarge, J,Masereel, B,Dupont, L,et al.

, p. 193 - 205 (1992)

The synthesis of three classes of potential antibiotic compounds derived from 4-amino-4H-1,2,4-triazole and related to β-lactam antibiotics is described.Their originality belongs to the replacement of the β-lactam carbonyl moiety by another electrophilic

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