77947-26-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 77947-26-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,7,9,4 and 7 respectively; the second part has 2 digits, 2 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 77947-26:
(7*7)+(6*7)+(5*9)+(4*4)+(3*7)+(2*2)+(1*6)=183
183 % 10 = 3
So 77947-26-3 is a valid CAS Registry Number.
77947-26-3Relevant academic research and scientific papers
SYNTHESIS OF 4H-PYRAZOLODIAZEPINE 1
Kurihara, Takushi,Kawasaki, Eiji,Nasu, Keiko
, p. 1913 - 1916 (2007/10/02)
6-Acetyl-8-ethoxycarbonyl-4H-pyrazolo-diazepine-3-carbonitrile (5) was synthesized by treatment of 2 with silicic acid
