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73550-61-5

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73550-61-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 73550-61-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,3,5,5 and 0 respectively; the second part has 2 digits, 6 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 73550-61:
(7*7)+(6*3)+(5*5)+(4*5)+(3*0)+(2*6)+(1*1)=125
125 % 10 = 5
So 73550-61-5 is a valid CAS Registry Number.

73550-61-5Relevant articles and documents

Reactions of Oxazolin-5-one Anions, IX. A Simple Procedure for the Preparation of δ-Aminolevulinic Acid Derivatives and Related Compounds

Schulz, Guenter,Steglich, Wolfgang

, p. 787 - 790 (2007/10/02)

Cyclization of Z-dipeptides 1 with acetic anhydride leads to 2-oxazolin-5-ones, which yield the corresponding 3-oxazolin-5-ones 2 by base-catalyzed addition of ethyl acrylate or acrylonitrile.Hydrolysis of 2a gives ethyl δ-(benzyloxycarbonylamino)levulina

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