77670-13-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 77670-13-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,7,6,7 and 0 respectively; the second part has 2 digits, 1 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 77670-13:
(7*7)+(6*7)+(5*6)+(4*7)+(3*0)+(2*1)+(1*3)=154
154 % 10 = 4
So 77670-13-4 is a valid CAS Registry Number.
77670-13-4Relevant academic research and scientific papers
NOUVELLES VOIES D'ACCES AUX BENZOPYRANNES-III 2H-BENZO(b)PYRANNES(CHROMENES-3)
Begasse, B.,Corre, M. Le
, p. 3409 - 3412 (2007/10/02)
Alkylation of o-hydroxybenzyl triphenylphosphonium salts with α-halogenated carbonyl compounds, in presence of base, gives chrom-3 enes.
