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4,4'-dichloro-5,5'-dimethyl-2,2'-dinitrodiphenylmethane is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

84658-71-9

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84658-71-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 84658-71-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,4,6,5 and 8 respectively; the second part has 2 digits, 7 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 84658-71:
(7*8)+(6*4)+(5*6)+(4*5)+(3*8)+(2*7)+(1*1)=169
169 % 10 = 9
So 84658-71-9 is a valid CAS Registry Number.

84658-71-9Relevant academic research and scientific papers

Snthesis of Some 5,5'-Dimethyl- and 5,3'-Dimethyl-4,4'-dihalo-2,2'-dinitrodiphenylmethanes and Their Conversion into Related 11-Dibenzo-diazepine Derivatives

Christudhas, M.,Joshua, C. P.

, p. 721 - 723 (2007/10/02)

5,5'-Dimethyl- and 5,3'-dimethyl-4,4'-dihalo-2,2'dinitrodiphenylmethanes have been prepared from the related 5,5'-dimethyl- (IVa; R = NH2)- and 5,3'-dimethyl- (IIIa; R = NH2)-4,4'-diamino-2,2'-dinitrodiphenylmethanes.Reduction of these dinitro derivatives with LiAlH4 yields the corresponding 11H-dibenzodiazepine derivatives.

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