103139-99-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 103139-99-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,3,1,3 and 9 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 103139-99:
(8*1)+(7*0)+(6*3)+(5*1)+(4*3)+(3*9)+(2*9)+(1*9)=97
97 % 10 = 7
So 103139-99-7 is a valid CAS Registry Number.
103139-99-7Relevant articles and documents
Synthesis of the potent mutagen 3,5,8-trimethyl-3H-imidazo[4,5-f]quinoxalin-2-amine.
Nyhammar,Grivas
, p. 583 - 587 (2007/10/02)
The mutagenic title compound (5,8-DiMeIQx) was synthesized by two different routes: from 2-methyl-4,6-dinitroaniline; and from 4-chloro-2-methyl-6-nitroaniline. The latter and more convenient route involved 2,1,3-benzoselenadiazole intermediates.