64756-97-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 64756-97-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,4,7,5 and 6 respectively; the second part has 2 digits, 9 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 64756-97:
(7*6)+(6*4)+(5*7)+(4*5)+(3*6)+(2*9)+(1*7)=164
164 % 10 = 4
So 64756-97-4 is a valid CAS Registry Number.
64756-97-4Relevant academic research and scientific papers
REGIOSPECIFIC FRIEDEL-CRAFTS ACYLATION OF 6-ALKOXY-2-PYRONES:PREPARATION OF SUBSTITUTED AROMATICS AND ANTHRAQUINONES.
Jung, Michael E.,Brown, Richard W.
, p. 3355 - 3358 (2007/10/02)
Friedel-Crafts acylation of 6-alkoxy-2-pyrones gives high yields of the 5-acyl-2-pyrones which undergo regioselective cycloaddition with various dienophiles.