17931-25-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 17931-25-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,7,9,3 and 1 respectively; the second part has 2 digits, 2 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 17931-25:
(7*1)+(6*7)+(5*9)+(4*3)+(3*1)+(2*2)+(1*5)=118
118 % 10 = 8
So 17931-25-8 is a valid CAS Registry Number.
17931-25-8Relevant articles and documents
SYNTHESIS OF HETEROCYCLES : SYNTHESIS OF NAPHTHO-TRIAZOLOTRIAZEPINES
Jain, Moti Lal,Soni, Rajendra Prasad
, p. 1077 - 1080 (2007/10/02)
Some new fluorinated naphthothiazolotriazepines have been synthesized by condensation of 2-hydrazinonaphthothiazoles with 1,3-diketones.