91869-70-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 91869-70-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,1,8,6 and 9 respectively; the second part has 2 digits, 7 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 91869-70:
(7*9)+(6*1)+(5*8)+(4*6)+(3*9)+(2*7)+(1*0)=174
174 % 10 = 4
So 91869-70-4 is a valid CAS Registry Number.
91869-70-4Relevant articles and documents
New Synthesis of Pyrazole and Isoxazole Derivatives
Molina, P.,Fresneda, P. M.
, p. 461 - 464 (2007/10/02)
A convenient synthesis of 5-aryl-1-phenylpyrazoles and 5-arylisoxazoles, from readily available ketimine 1 dimethylformamide dimethylacetal and phenylhydrazine or hydroxylamine, is described.
