81633-04-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 81633-04-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,1,6,3 and 3 respectively; the second part has 2 digits, 0 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 81633-04:
(7*8)+(6*1)+(5*6)+(4*3)+(3*3)+(2*0)+(1*4)=117
117 % 10 = 7
So 81633-04-7 is a valid CAS Registry Number.
81633-04-7Relevant academic research and scientific papers
Bromhydrination of Chalkones in Dimethyl Sulphoxide
Lohiya, S. B.,Ghiya, B. J.
, p. 1092 - 1093 (2007/10/02)
A novel method developed for the preparation of α-bromo-β-hydroxychalkones (IIIa-d) involves bromhydrination of the corresponding chalkones (Ia-d) with bromine water in dimethyl sulphoxide at room temperature.
