133662-28-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 133662-28-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,3,6,6 and 2 respectively; the second part has 2 digits, 2 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 133662-28:
(8*1)+(7*3)+(6*3)+(5*6)+(4*6)+(3*2)+(2*2)+(1*8)=119
119 % 10 = 9
So 133662-28-9 is a valid CAS Registry Number.
133662-28-9Relevant articles and documents
Synthese de Pyrroloquinoleines
Bouyazza, Lahboub,Lancelot, Jean-Charles,Rault, Sylvain,Robba, Max
, p. 77 - 80 (2007/10/02)
4-Acetoxypyrroloquinolines 26-30 were synthesized by cyclization of 2-(1-pyrrolyl)phenylacetic acids 21-25 with acetic anhydride.The structures of the new compounds were determined by 1H-nmr spectroscopy.