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73183-22-9

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73183-22-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 73183-22-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,3,1,8 and 3 respectively; the second part has 2 digits, 2 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 73183-22:
(7*7)+(6*3)+(5*1)+(4*8)+(3*3)+(2*2)+(1*2)=119
119 % 10 = 9
So 73183-22-9 is a valid CAS Registry Number.

73183-22-9Relevant articles and documents

Trimethylsilyl Cyanide - A Reagent for Umpolung, IV: Substituent Effectsin the Acylating Nucleophile for Directing 1,2-/1,4-Addition to α,β-Unsaturated Ketones

Huenig, Siegfried,Wehner, Gregor

, p. 324 - 332 (2007/10/02)

Mesityl oxide (6) is attacked by nucleophilic anions 5a-f in DME at the C-1 and/or C-3 position.Depending on the p-substituent in 5 the whole scale from 100percent 1,2-adduct 7 (with 5a, X = N(CH3)2) to 100percent 1,4-adduct 9 (with 5f, X = CN) is covered

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