639784-95-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 639784-95-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,3,9,7,8 and 4 respectively; the second part has 2 digits, 9 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 639784-95:
(8*6)+(7*3)+(6*9)+(5*7)+(4*8)+(3*4)+(2*9)+(1*5)=225
225 % 10 = 5
So 639784-95-5 is a valid CAS Registry Number.
639784-95-5Relevant articles and documents
Synthesis and study of pigment aggregation response of some melatonin derivatives
Doss,Mohareb, Rafat M.,Elmegeed,Luoca
, p. 607 - 613 (2007/10/03)
This study was performed to investigate the reactivity of melatonin towards various chemical reagents to produce new derivatives of melatonin containing extra- or fused heterocyclic systems such as the imidazoindole derivatives 3, 5, 6, the triazinoindole