172758-00-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 172758-00-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,2,7,5 and 8 respectively; the second part has 2 digits, 0 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 172758-00:
(8*1)+(7*7)+(6*2)+(5*7)+(4*5)+(3*8)+(2*0)+(1*0)=148
148 % 10 = 8
So 172758-00-8 is a valid CAS Registry Number.
172758-00-8Relevant articles and documents
Pteridines CXX.1 synthesis and properties of tetrahydro-pterins coupled to 1,4-dihydropyridines
Rehse, Joachim,Pfleiderer, Wolfgang
experimental part, p. 953 - 970 (2010/10/03)
N2-Isobutyroyl-5,6,7,8-tetrahydropterins (610) have been coupled with nicotinic acid to form the N5-nicotinoyl derivatives 1115. Quaternization at the pyridine moiety led to 1931 which can be reduced to the corresponding N-substitute
