78156-65-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 78156-65-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,8,1,5 and 6 respectively; the second part has 2 digits, 6 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 78156-65:
(7*7)+(6*8)+(5*1)+(4*5)+(3*6)+(2*6)+(1*5)=157
157 % 10 = 7
So 78156-65-7 is a valid CAS Registry Number.
78156-65-7Relevant articles and documents
α-HALO KETONES IX.1 A NEW FURAN-FORMING REACTION
Warnhoff, E.W.,Yerhoff, F.W.
, p. 777 - 784 (2007/10/02)
Some α-halo ketones react with 2-naphthol in the presence of strong acids to give naphthofurans.A hydroxyallylic catin may be an intermediate in the reaction.
