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163555-82-6

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163555-82-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 163555-82-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,6,3,5,5 and 5 respectively; the second part has 2 digits, 8 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 163555-82:
(8*1)+(7*6)+(6*3)+(5*5)+(4*5)+(3*5)+(2*8)+(1*2)=146
146 % 10 = 6
So 163555-82-6 is a valid CAS Registry Number.

163555-82-6Downstream Products

163555-82-6Relevant articles and documents

A NOVEL SYNTHESIS OF SOME NAPHTHOTHIAZOLE-4,9-DIONES FROM LAWSONE

Brahmeshwari, G.,Rao, V. Rajeswar,Kumari, T. Surya,Rao, T. V. Padmanabha

, p. 51 - 56 (2007/10/02)

A series of naphthothiazole-4,9-diones (IV) have been prepared by the condensation of bromolawsone (II) with thiosemicarbazones derived from aldehydes and ketones in dry DMF. The products (V) are also obtained by the cyclization of the intermediate 2-chlorobenzaldehyde thiosemicarbazone of 1,4-naphthoquinone (IV) in ethanol containing KHCO3 obtained from 2,3-dichloronaphthoquinone. Key words: Bromolawsone, thiazole, 2,3-dichloronaphthoquinone and naphthothiazoles.

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