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75186-55-9

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75186-55-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 75186-55-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,5,1,8 and 6 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 75186-55:
(7*7)+(6*5)+(5*1)+(4*8)+(3*6)+(2*5)+(1*5)=149
149 % 10 = 9
So 75186-55-9 is a valid CAS Registry Number.

75186-55-9Relevant articles and documents

Photochemical reactions of quinoid α-aryl-substituted γ-oxo-α,β-unsaturated carboxylic esters and amides. Formation of naphthacene and cycloheptatriene derivatives

Verboom, W.,Brants, J. J. M.,Bos, H. J. T.

, p. 68 - 77 (2007/10/02)

Irradiation of the quinoid α-arylsubstituted γ-oxo-α,β-unsaturated carboxylic esters 7a-b and amides 10a-b, derived from 9,10-phenanthrenequinone, afforded, in addition to the Z/E isomers, the 8-oxo-8H-benzonaphthacene-9-carboxylic esters (13a-b) and

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