871023-09-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 871023-09-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,7,1,0,2 and 3 respectively; the second part has 2 digits, 0 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 871023-09:
(8*8)+(7*7)+(6*1)+(5*0)+(4*2)+(3*3)+(2*0)+(1*9)=145
145 % 10 = 5
So 871023-09-5 is a valid CAS Registry Number.
871023-09-5Relevant articles and documents
PHOTOCHEMICAL REACTION BETWEEN TRYPTOPHAN AND THYMINE
Saito, Isao,Sugiyama, Hiroshi,Matsuura, Teruo,Fukuyama, Keiichi,Katsube, Yukiteru
, p. 3243 - 3246 (1984)
Irradiation of tryptophan and thymine in aqueous solution produced two photoadducts whose structures were determined by spectral data and X-ray crystallographic analysis.