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69249-42-9

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69249-42-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 69249-42-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,9,2,4 and 9 respectively; the second part has 2 digits, 4 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 69249-42:
(7*6)+(6*9)+(5*2)+(4*4)+(3*9)+(2*4)+(1*2)=159
159 % 10 = 9
So 69249-42-9 is a valid CAS Registry Number.

69249-42-9Upstream product

69249-42-9Downstream Products

69249-42-9Relevant articles and documents

Orientation and substituent effects on the properties of the diacetylene-group connected octaethylporphyrin-dihexylbithiophene derivatives (OEP-DHBTh-X) carrying electron-withdrawing groups

Hayashi, Naoto,Nishihara, Takashi,Matsukihira, Takuya,Nakashima, Hiroki,Miyabayashi, Keiko,Miyake, Mikio,Higuchi, Hiroyuki

, p. 371 - 386 (2007)

Orientational isomers of the octaethylporphyrin-dihexylbithiophene (OEP-DHBTh) derivatives connected with a diacetylene linkage were synthesized, with various electron-withdrawing substituents X attached at the ends. The effects of DHBTh orientation and X substituent on the properties of OEP-DHBTh-X (X = H, Br, CN, CHO, and NO2) were studied and compared with those of related OEP derivatives.

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