74938-12-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 74938-12-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,4,9,3 and 8 respectively; the second part has 2 digits, 1 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 74938-12:
(7*7)+(6*4)+(5*9)+(4*3)+(3*8)+(2*1)+(1*2)=158
158 % 10 = 8
So 74938-12-8 is a valid CAS Registry Number.
74938-12-8Relevant articles and documents
2H-PYRROLE-1-OXIDES BY SELENIUM DIOXIDE DEHYDROGENATION OF PYRROLINE-1-OXIDES
Bender, H.,Doepp, D.
, p. 1833 - 1836 (1980)
Five different 2H-pyrrole-1-oxides have been prepared by dehydrogenation of their corresponding pyrroline-1-oxide precursors and characterized by 1,3-dipolar cycloadditions with dimethyl ethyne dicarboxylate and/or N-phenyl maleic imide.
