81144-22-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 81144-22-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,1,1,4 and 4 respectively; the second part has 2 digits, 2 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 81144-22:
(7*8)+(6*1)+(5*1)+(4*4)+(3*4)+(2*2)+(1*2)=101
101 % 10 = 1
So 81144-22-1 is a valid CAS Registry Number.
81144-22-1Relevant academic research and scientific papers
Reactions with Cyclobutenediones, LIX. - New Syntheses of 3-Alkyl-4-phenylcyclobutene-1,2-diones
Ried, Walter,Vogl, Manfred
, p. 355 - 359 (2007/10/02)
The 3-alkyl-4-phenylcyclobutene-1,2-diones 4a-e have been prepared by degradation of the cyclobutene-1,2-diones 3a-e.The compounds 4a and 4b can also be obtained by hydrolysis of the cycloaddition products 5a and 5b.
