81533-41-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 81533-41-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,1,5,3 and 3 respectively; the second part has 2 digits, 4 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 81533-41:
(7*8)+(6*1)+(5*5)+(4*3)+(3*3)+(2*4)+(1*1)=117
117 % 10 = 7
So 81533-41-7 is a valid CAS Registry Number.
81533-41-7Relevant academic research and scientific papers
Synthesis of Substituted Pyrazolo--as-triazines
Heinisch, L.
, p. 57 - 64 (2007/10/02)
Some new substituted pyrazolo--as-triazines (6a-f, 7a-c) were synthesized by cyclisation of pyrazoline-4,5-dion-4-isothiosemicarbazones (5a-c) and -4-amidinohydrazones (4a-f) in phenol at 180-200 deg C. 3-Ethylmercapto-7-phenyl-pyrazolo--as-
