131598-63-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 131598-63-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,1,5,9 and 8 respectively; the second part has 2 digits, 6 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 131598-63:
(8*1)+(7*3)+(6*1)+(5*5)+(4*9)+(3*8)+(2*6)+(1*3)=135
135 % 10 = 5
So 131598-63-5 is a valid CAS Registry Number.
InChI:InChI=1/C9H16N4O2/c1-3-4-5-11-6-7(10)13(2)9(15)12-8(6)14/h11H,3-5,10H2,1-2H3,(H,12,14,15)
131598-63-5Relevant articles and documents
Microwave-assisted synthesis of 8-mercapto-3-methyl-7-alkyl xanthines - An improved method
Zhang, Lei,Zhang, Y. John
, p. 775 - 778 (2007/10/03)
A microwave-assisted synthetic method to prepare novel 8-mercapto-3-methyl- 7-alkyl xanthine compounds is reported. Compared to conventional synthetic route, the new method significantly shortened synthetic steps and reaction time.