81645-08-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 81645-08-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,1,6,4 and 5 respectively; the second part has 2 digits, 0 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 81645-08:
(7*8)+(6*1)+(5*6)+(4*4)+(3*5)+(2*0)+(1*8)=131
131 % 10 = 1
So 81645-08-1 is a valid CAS Registry Number.
InChI:InChI=1/C12H14N4O7/c13-12-14-8-5(9(20)15-12)3(11(21)22)1-16(8)10-7(19)6(18)4(2-17)23-10/h1,4,6-7,10,17-19H,2H2,(H,21,22)(H3,13,14,15,20)/t4-,6-,7-,10-/m1/s1
81645-08-1Relevant articles and documents
PYRROLOPYRIMIDINE NUCLEOSIDES 19. A TOTAL SYNTHESIS OF THE NUCLEOSIDE ANTIBIOTIC CADEGUOMYCIN PYRIMIDIN-4-ONE-5-CARBOXYLIC ACID>
Beylin, Vladimir G.,Kawasaki, Andrew M.,Cheng, Chin Shu,Townsend, Leroy B.
, p. 4793 - 4796 (2007/10/02)
A total synthesis of 2-amino-7-(β-D-ribofuranosyl)pyrrolopyrimidin-4-one-5-carboxylic acid has been accomplished and confirms the previous structural assignment for the nucleoside antibiotic cadeguomycin.