91664-22-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 91664-22-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,1,6,6 and 4 respectively; the second part has 2 digits, 2 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 91664-22:
(7*9)+(6*1)+(5*6)+(4*6)+(3*4)+(2*2)+(1*2)=141
141 % 10 = 1
So 91664-22-1 is a valid CAS Registry Number.
91664-22-1Relevant academic research and scientific papers
A FACILE SYNTHESIS OF CROTYLACETOPHENONES AND ACETYL SUBSTITUTED 2-METHYLCHROMANS
Ahluwalia, V. K.,Singh, Manjula,Singh, R. P.
, p. 126 - 138 (2007/10/02)
Condensation of hydroxyacetophenones with but-1,3-diene has been achieved in presence of orthophosphoric acid leading to the formation of crotyl acetophenones which were cyclised to the corresponding 2-methylchromans.
