158017-92-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 158017-92-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,8,0,1 and 7 respectively; the second part has 2 digits, 9 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 158017-92:
(8*1)+(7*5)+(6*8)+(5*0)+(4*1)+(3*7)+(2*9)+(1*2)=136
136 % 10 = 6
So 158017-92-6 is a valid CAS Registry Number.
158017-92-6Relevant articles and documents
Syntheses of natural 4,4'-dihydroxy-2',6'-dimethoxy- and 4,2'-dihydroxy-4',6'-dimethoxy-3'-(γ,γ-dimethylallyl)-chalcones
Jain, A. C.,Sinha, S. P.
, p. 317 - 320 (2007/10/02)
The natural chalocone 6 has been synthesised from 6-O-methylphloroacetophenone (1) by ethoxymethylation, methylation, condensation with 4-ethoxymethoxybenzaldehyde (4) and finally deethoxymethylation with 4percent methanol
