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93091-59-9

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93091-59-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 93091-59-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,3,0,9 and 1 respectively; the second part has 2 digits, 5 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 93091-59:
(7*9)+(6*3)+(5*0)+(4*9)+(3*1)+(2*5)+(1*9)=139
139 % 10 = 9
So 93091-59-9 is a valid CAS Registry Number.

93091-59-9Upstream product

93091-59-9Downstream Products

93091-59-9Relevant articles and documents

A STUDY OF BROMOPORPHINS

Nudy, Louis R.,Hutchinson, Howard G.,Schieber, Cherlyann,Longo, Frederick R.

, p. 2359 - 2364 (1984)

The synthesis and characterizations of 2-bromoporphin, 5-bromoporphin, 5,15-dibromoporphin and 5,10,15-tribromoporphin are described.Yields of the bromoporphins obtained with a variety of brominating agents are reported.Spectral properties were measured and, along with chemical properties, are presented as evidence for a preferred delocalization pathway in porphin.

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