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89950-18-5

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89950-18-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 89950-18-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,9,9,5 and 0 respectively; the second part has 2 digits, 1 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 89950-18:
(7*8)+(6*9)+(5*9)+(4*5)+(3*0)+(2*1)+(1*8)=185
185 % 10 = 5
So 89950-18-5 is a valid CAS Registry Number.

89950-18-5Relevant articles and documents

DIMETHOXY AROMATIC COMPOUNDS. II. BROMODEALKYLATION REACTIONS OF meta-DIMETHOXYBENZENE DERIVATIVES

Natoli, Maria C.,Agozzino, Pasquale,Ceraulo, Leopoldo,Lamartina, Liliana

, p. 493 - 502 (2007/10/02)

Comparison of the behaviour of 1,1-bis(dimethoxyphenyl)ethane derivatives towards bromination in different experimental conditions shows that only 2,4-dimethoxy derivatives undergo bromodealkylation processes, the aromatic displacement of the arylethane group occurring only when a high electron density resides at the alkyl-substituted carbon

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