133649-23-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 133649-23-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,3,6,4 and 9 respectively; the second part has 2 digits, 2 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 133649-23:
(8*1)+(7*3)+(6*3)+(5*6)+(4*4)+(3*9)+(2*2)+(1*3)=127
127 % 10 = 7
So 133649-23-7 is a valid CAS Registry Number.
133649-23-7Relevant articles and documents
Synthesis and Spectroscopic Characterization of (15)N-Labeled Hexaaminobenzene Derivatives
Wolff, J. Jens,Limbach, Hans-Heinrich
, p. 691 - 694 (2007/10/02)
Efficient syntheses of (15)N6-labeled hexaaminobenzene (6), hexakis(dimethylamino)benzene (7) and 2,2',2''-trimethylbenzotris(imidazol) (1) are described.The compounds are characterized by (15)N CPMAS NMR spectroscopy. Key words: Hexaaminobenzene, (15)N6-
