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87219-21-4

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87219-21-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 87219-21-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,7,2,1 and 9 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 87219-21:
(7*8)+(6*7)+(5*2)+(4*1)+(3*9)+(2*2)+(1*1)=144
144 % 10 = 4
So 87219-21-4 is a valid CAS Registry Number.

87219-21-4Relevant articles and documents

CYCLIZATION REACTIONS OF N-(2-CHLOROETHYLCARBAMOYL) AMINO ACIDS

Vargha, H. S.,Medzihradszky-Schweiger, H.,Ruff, F.,Medzihradszky, K.

, p. 2255 - 2258 (2007/10/02)

Intramolecular cyclization of the N-(2-chloroethylcarbamoyl) derivatives of glycine, valine and phenylalanine give imidazolidone, oxazoline and hydantoin derivatives.The imidazolidone and oxazoline derivatives possess alkylating activity toward NBP, but the hydantoins do not.N-(2-Chloroethylcarbamoyl)glycine reacts with the mercapto group of cysteine; thus, this alkylating group may be useful for receptor labelling.

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