143678-99-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 143678-99-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,3,6,7 and 8 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 143678-99:
(8*1)+(7*4)+(6*3)+(5*6)+(4*7)+(3*8)+(2*9)+(1*9)=163
163 % 10 = 3
So 143678-99-3 is a valid CAS Registry Number.
143678-99-3Relevant articles and documents
Simple synthesis of the 5-O-benzoylriboside of 1,4-dihydronicotinic acid; A cofactor for DT diaphorase and nitroreductase enzymes
Davies
, p. 311 - 312 (1995)
A simple one flask synthesis of the 5 O-benzoylriboside and riboside of nicotinic acid has been developed. Reduction of the benzoylriboside with sodium dithionite gives the 1,4-dihydronicotinic acid in good yield.