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3515-42-2

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3515-42-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 3515-42-2 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 3,5,1 and 5 respectively; the second part has 2 digits, 4 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 3515-42:
(6*3)+(5*5)+(4*1)+(3*5)+(2*4)+(1*2)=72
72 % 10 = 2
So 3515-42-2 is a valid CAS Registry Number.

3515-42-2Relevant articles and documents

Reaction of 4-hydroxycoumarin or its O-substituted derivatives with diatomic interhalogens: ICl and IBr

Popa, Marcel Mirel,Draghici, Constantin,Barbu, Loredana,Dumitrescu, Denisa E.,Dumitrascu, Florea

, p. 344 - 350 (2017)

Herein, we present some aspects regarding the iodination/bromination of 4-hydroxycoumarin or its O-methyl or O-acetyl derivatives with iodine monochloride or iodine monobromide as halogenation reagents. Also, the investigation of photochemical transformation of the three 3-iodocoumarins was investigated for the first time.

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