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135680-20-5

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135680-20-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 135680-20-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,5,6,8 and 0 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 135680-20:
(8*1)+(7*3)+(6*5)+(5*6)+(4*8)+(3*0)+(2*2)+(1*0)=125
125 % 10 = 5
So 135680-20-5 is a valid CAS Registry Number.

135680-20-5Downstream Products

135680-20-5Relevant articles and documents

Dihydroxyxanthene compd., colored resin composition

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Paragraph 0073; 0075-0077, (2017/04/03)

PROBLEM TO BE SOLVED: To provide novel xanthene compounds excellent in heat resistance and fastness and a coloring resin composition which enables production of a red color filter using the compounds as a dye.SOLUTION: Xanthene compounds of formula (1) are provided. In the formula (1), Rto Rare independently H or a 1-4C alkyl group; Ris a carboxylic acid ester group; Rto Rare independently H, a halogen atom, a cyano group, a nitro group or a 1-4C alkyl group; and Ris H, a 1-10C alkyl group or a 5-10C aromatic hydrocarbon group.

Basic Yellow Dyes as Dye Component for Optical Data Recording Media

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Page/Page column 7, (2009/01/24)

The present invention relates to the use of Basic Yellow dyes as dye component for optical data recording media. In a preferred aspect the present invention relates to Basic Yellow dyes together with a metalazo complex dye as dye components for optical da

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