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83994-84-7

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83994-84-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 83994-84-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,3,9,9 and 4 respectively; the second part has 2 digits, 8 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 83994-84:
(7*8)+(6*3)+(5*9)+(4*9)+(3*4)+(2*8)+(1*4)=187
187 % 10 = 7
So 83994-84-7 is a valid CAS Registry Number.

83994-84-7Downstream Products

83994-84-7Relevant articles and documents

Efficient synthesis of Bis(4-Dimethaminophenyl)arylmethanes and Bis(4-Diamethaminophenyl)alkanes using iodine reagent

Bachhav, Harshal M.,Takale, Balaram S.,Telvekar, Vikas N.

, p. 1909 - 1914 (2013/05/21)

A novel synthetic utility of NaICl2 for the preparation of bis(4-dimethaminophenyl)arylmethanes and bis(4-dimethaminophenyl)alkanes is described. In the presence of an aqueous solution of NaICl2, the reaction of arenes with aromatic aldehydes gives corresponding triarylmethane derivatives regioselectively in moderate to good yields. The method is also useful for the preparation of diarylalkane derivatives by using aliphatic aldehydes. Supplemental materials are available for this article. Go to the publisher's online edition of Synthetic Communications to view the free supplemental file.

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