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6889-33-4

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6889-33-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 6889-33-4 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 6,8,8 and 9 respectively; the second part has 2 digits, 3 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 6889-33:
(6*6)+(5*8)+(4*8)+(3*9)+(2*3)+(1*3)=144
144 % 10 = 4
So 6889-33-4 is a valid CAS Registry Number.

6889-33-4Relevant articles and documents

Fluorescent hexaaryl- and hexa-heteroaryl[3]-radialenes: Synthesis, structures, and properties

Avellaneda, Antonio,Hollis, Courtney A.,He, Xin,Sumby, Christopher J.

, p. 71 - 80 (2012/04/10)

The syntheses of three new [3]radialenes - hexakis(3, 5-dimethylpyrazolyl)- , hexakis(3-cyanophenyl)-, and hexakis(3, 4-dicyanophenyl)[3]radialene (1-3) - are reported. Compound 3 is obtained in five steps with an excellent yield of 76% in the key step. C

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