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21762-11-8

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21762-11-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 21762-11-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,1,7,6 and 2 respectively; the second part has 2 digits, 1 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 21762-11:
(7*2)+(6*1)+(5*7)+(4*6)+(3*2)+(2*1)+(1*1)=88
88 % 10 = 8
So 21762-11-8 is a valid CAS Registry Number.

21762-11-8Relevant articles and documents

Convenient syntheses of racemic 2-(3-nitrophenyl)propanoic acid and 2-(3-aminophenyl)propanoic acid

Grondard, Luc,Manfre, Franco,Mutti, Stephane

, p. 425 - 430 (2007/10/03)

2-(4-Chlorophenyl)propanoic acid 1 is transformed to 2-(4-chloro-3-nitrophenyl)propanoic acid 2 (94% yield). Acid 2 can be converted to 2-(3-nitrophenyl)propanoic acid 3 (70% yield) or to 2-(3-aminophenyl)propanoic acid 4 (80% yield).

Radioopaque contrast media. 18. Derivatives of 2-(3-amino-2,4,6-triiodophenyl)alkanoic acids.

Felder,Pitre,Fumagalli,Lorenzotti

, p. 559 - 561 (2007/10/12)

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