17743-23-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 17743-23-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,7,7,4 and 3 respectively; the second part has 2 digits, 2 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 17743-23:
(7*1)+(6*7)+(5*7)+(4*4)+(3*3)+(2*2)+(1*3)=116
116 % 10 = 6
So 17743-23-6 is a valid CAS Registry Number.
17743-23-6Relevant articles and documents
Tetrazoles. 33. New method for obtaining functionally substituted tetrazoles
Gol'tsberg,Koldobskii
, p. 1300 - 1304 (2007/10/03)
The interaction of 5-methylsulfonyl-1-phenyltetrazole with C-, N-, and O-nucleophiles at 18-20°C gives high yields of 1-phenyltetrazoles that are functionally substituted on the carbon atom of the heteroring. Prospects are examined for the use of 5-methyl
