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118673-19-1

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118673-19-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 118673-19-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,8,6,7 and 3 respectively; the second part has 2 digits, 1 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 118673-19:
(8*1)+(7*1)+(6*8)+(5*6)+(4*7)+(3*3)+(2*1)+(1*9)=141
141 % 10 = 1
So 118673-19-1 is a valid CAS Registry Number.

118673-19-1Relevant articles and documents

Stereocontrolled Synthesis of N-Vinyl-, N-(1'-Propenyl)-, and N-Unsubstituted-β-lactams from 2-Aza-1,3-butadienes via the Staudinger Reaction

Georg, Gunda I.,He, Ping,Kant, Joydeep,Wu, Zhi-jun

, p. 5771 - 5778 (1993)

2-Aza-1,3-butadienes 2 and 5 were synthesized in good yields and on a large scale.Reaction of 2 and 5 with acid chlorides in the presence of triethylamine (Staudinger reaction) resulted in the high-yielding formation of N-vinyl- and N-(1'-propenyl)-β-lact

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