128590-37-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 128590-37-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,8,5,9 and 0 respectively; the second part has 2 digits, 3 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 128590-37:
(8*1)+(7*2)+(6*8)+(5*5)+(4*9)+(3*0)+(2*3)+(1*7)=144
144 % 10 = 4
So 128590-37-4 is a valid CAS Registry Number.
128590-37-4Relevant academic research and scientific papers
No, Kwanghyun,Hong, Misook
, p. 572 - 573 (1990)
Friedel-Crafts acetylation of the calixarene dimethyl ether (2) gives diametrically substituted p-diacetylcalixarene dimethyl ether (3), which was demethylated to produce selectively substituted p-diacetylcalixarene (4).
