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857588-80-8

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857588-80-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 857588-80-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,5,7,5,8 and 8 respectively; the second part has 2 digits, 8 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 857588-80:
(8*8)+(7*5)+(6*7)+(5*5)+(4*8)+(3*8)+(2*8)+(1*0)=238
238 % 10 = 8
So 857588-80-8 is a valid CAS Registry Number.

857588-80-8Relevant articles and documents

Regioselective copper-catalysed amination of halobenzoic acids using aromatic amines

Maradolla, Mohan Babu,Mandha, Amaravathi,Garimella, Chandra Mouli

, p. 587 - 589 (2007)

Copper dipyridine dichloride (CuPy2Cl2) has been found to be an efficient catalyst for the synthesis of N-arylanthranilic acids from ortho halobenzoic acids and aromatic amines under microwave irradiation. Some of the advantages of this method are high chemoselectivity, ease of operation, less reaction times and high yields. (61-98%).

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