1221-00-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1221-00-7 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,2,2 and 1 respectively; the second part has 2 digits, 0 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 1221-00:
(6*1)+(5*2)+(4*2)+(3*1)+(2*0)+(1*0)=27
27 % 10 = 7
So 1221-00-7 is a valid CAS Registry Number.
1221-00-7Relevant academic research and scientific papers
One-Pot Oxidation and Dehydration with Selenium Dioxide
Pilidis, Georgios
, p. 1176 (2007/10/02)
The phthalic anhydride derivative (2) has been synthesized from Diels-Alder adduct (1) by one-pot oxidation with selenium dioxide in acetic anhydride or treatment with N-bromosuccinimide in the presence of sodium acetate in acetic acid.
