81931-44-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 81931-44-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,1,9,3 and 1 respectively; the second part has 2 digits, 4 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 81931-44:
(7*8)+(6*1)+(5*9)+(4*3)+(3*1)+(2*4)+(1*4)=134
134 % 10 = 4
So 81931-44-4 is a valid CAS Registry Number.
81931-44-4Relevant academic research and scientific papers
SYNTHESE DE S-TRIAZOLO ET TRIAZINES-1,2,4
Legraverend, M.,Lhoste, J. M.,Bisagni, E.
, p. 4353 - 4356 (2007/10/02)
2-substituted s-triazolo and 3-substituted s-triazolo -1,2-4-triazine 8-ones were obtained starting from 5-(3)-alkyl-3(5)-carboxyhydrazino-1,2,4 triazoles and ethyl orthoformate.However, the same reaction was not found to be an efficient one
