1621-63-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1621-63-2 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,6,2 and 1 respectively; the second part has 2 digits, 6 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 1621-63:
(6*1)+(5*6)+(4*2)+(3*1)+(2*6)+(1*3)=62
62 % 10 = 2
So 1621-63-2 is a valid CAS Registry Number.
1621-63-2Relevant articles and documents
Two Syntheses of 7,2'-Dimethoxyisoflavone
Rani, Indu
, p. 361 - 362 (2007/10/02)
7,2'-Dimethoxyisoflavone (V) has been synthesised by two routes: (i) by direct oxidative rearrangement of 2'-hydroxy-2,4'-dimethoxychalkone; and (ii) by treatment of 2'-benzyloxy-2,4'-dimethoxychalkone epoxide (III) derivable from I, with BF3-etherate to