2398-70-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 2398-70-1 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 2,3,9 and 8 respectively; the second part has 2 digits, 7 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 2398-70:
(6*2)+(5*3)+(4*9)+(3*8)+(2*7)+(1*0)=101
101 % 10 = 1
So 2398-70-1 is a valid CAS Registry Number.
InChI:InChI=1/C7H8N4OS/c1-10-5-4(8-3-9-5)6(13)11(2)7(10)12/h3H,1-2H3,(H,8,9)
2398-70-1Relevant articles and documents
Solvent-free synthesis of thio-alkylxanthines from alkylxanthines using microwave irradiation
Rico-Gomez, Rodrigo,Najera, Francisco,Lopez-Romero, Juan Manuel,Ca, Pedro
, p. 2275 - 2278 (2007/10/03)
An expeditious, solvent-free procedure for the conversion of the xanthine bases theophylline, 8-methyltheophylline, caffeine, and theobromine to the corresponding 6-thio and 2,6-dithio derivatives using Lawesson's reagent under microwave irradiation is proposed.
