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74011-19-1

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74011-19-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 74011-19-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,4,0,1 and 1 respectively; the second part has 2 digits, 1 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 74011-19:
(7*7)+(6*4)+(5*0)+(4*1)+(3*1)+(2*1)+(1*9)=91
91 % 10 = 1
So 74011-19-1 is a valid CAS Registry Number.

74011-19-1Relevant articles and documents

Studies on New Synthetic Pathways to Δα,β-Butenolides from α-Methylbutanolides. II. Electrolytic Oxidation of Simple α-Carboxy-α-methylbutanolides

Kawamata, Takeshi,Inayama, Seiichi,Sata, Kazuko

, p. 277 - 281 (2007/10/02)

A new approach to the synthesis of Δα,β-butenolides from γ-butanolides by means of the electrolytic oxidation of α-carboxy-α,γ-dimethyl-γ-butyrolactone (3b) and its α-carboxy-α-methyl analog (3d) resulted in predominant formation of the endocyc

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