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119802-59-4

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119802-59-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 119802-59-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,9,8,0 and 2 respectively; the second part has 2 digits, 5 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 119802-59:
(8*1)+(7*1)+(6*9)+(5*8)+(4*0)+(3*2)+(2*5)+(1*9)=134
134 % 10 = 4
So 119802-59-4 is a valid CAS Registry Number.

119802-59-4Downstream Products

119802-59-4Relevant articles and documents

Naphtoquinone Methide Type Near-I.R. Dye: The Properties and Structure of 4-(2'-Acetylamino-4'-diethylaminophenylimino)-1,4-dihydronaphthylidene-malononitrile

Kubo, Yuji,Kuwana, Minoru,Yoshida, Katsuhira,Tomotake, Yasuko,Matsuzaki, Takao,Maeda, Shuichi

, p. 35 - 37 (1989)

The introduction of an acetylamino group at the 2'-position in the aniline ring of a naphhoquinone methide dye produced a red shift with a large increase in the molecular extinction coefficient in CHCl3 solution, and an intramolecular ring-closure reaction of the compound under alkaline conditions gave a new blue dye; the stereochemistry of this chromophoric system was determined by X-ray analysis.

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