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144672-17-3

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144672-17-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 144672-17-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,4,6,7 and 2 respectively; the second part has 2 digits, 1 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 144672-17:
(8*1)+(7*4)+(6*4)+(5*6)+(4*7)+(3*2)+(2*1)+(1*7)=133
133 % 10 = 3
So 144672-17-3 is a valid CAS Registry Number.

144672-17-3Downstream Products

144672-17-3Relevant articles and documents

Synthesis and Study of Chlorin and Porphyrin Dimers with Ether Linkage

Brandis, Alexander S.,Kozyrev, Andrey N.,Mironov, Andrey F.

, p. 6485 - 6494 (1992)

Novel dimers of chlorophyll compounds (pheophorbide a, chlorin p6) and model porphyrin with ether linkage were synthesized and separated into components A and B (less and more polar).The ratio of these components was the same for all dimers and irrespective of reaction conditions.Method of dimerization through trifluoroacetoxyethylderivative gave higher yields. Key words: porphyrin dimer; chlorin dimer, pheophorbide; purpurin; stereoisomers

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