69551-41-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 69551-41-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,9,5,5 and 1 respectively; the second part has 2 digits, 4 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 69551-41:
(7*6)+(6*9)+(5*5)+(4*5)+(3*1)+(2*4)+(1*1)=153
153 % 10 = 3
So 69551-41-3 is a valid CAS Registry Number.
69551-41-3Relevant articles and documents
Retinoids and Carotenoids, V.- Synthesis of Modified Retinals
Bestmann, Hans Juergen,Ermann, Peter,Rueppel, Hartmann,Sperling, Walter
, p. 479 - 498 (2007/10/02)
The syntheses of 13-demethyl-13-ethyl-, 13-demethyl-13-propyl-, 13-demethyl-, 13-demethyl-14-methyl-, and 14-methylretinal are described.The UV spectra of some geometric isomers of these compounds are discussed.