30508-15-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 30508-15-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,0,5,0 and 8 respectively; the second part has 2 digits, 1 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 30508-15:
(7*3)+(6*0)+(5*5)+(4*0)+(3*8)+(2*1)+(1*5)=77
77 % 10 = 7
So 30508-15-7 is a valid CAS Registry Number.
30508-15-7Relevant articles and documents
Reactivity of 2'-Hydroxy-3',4'-benzochalkone Dibromides
Paranjape, M. V.,Wadokar, K. N.
, p. 808 - 809 (2007/10/02)
Bromination of 2'-hydroxy-4-methoxy-3',4'-benzochalkone (Ia) with 2 mol of bromine in acetic acid gives 5'-bromo-2'-hydroxy-4-methoxy-3',4'-benzochalkone α,β-dibromide (IIa) which on treatment with hot aq. ethanolic alkali or pyridine does not give the ex
