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Benzenesulfonic acid 2-(6-methoxy-naphthalen-1-yl)-ethyl ester is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

99417-11-5

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99417-11-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 99417-11-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,9,4,1 and 7 respectively; the second part has 2 digits, 1 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 99417-11:
(7*9)+(6*9)+(5*4)+(4*1)+(3*7)+(2*1)+(1*1)=165
165 % 10 = 5
So 99417-11-5 is a valid CAS Registry Number.

99417-11-5Relevant academic research and scientific papers

Methoxybenzopyrene 4,5-Oxides Labeled with Carbon-13: Electronic Effects in the NIH Shift

Silverman, I. Robert,Daub, Guido H.,Jagt, David L. Vander

, p. 5550 - 5556 (1985)

The synthesis of 9-methoxy-4,5-dihydrobenzopyrene-4-13C4,5-oxide and -5-13C4,5-oxide and of 8-methoxy-4,5-dihydrobenzopyrene-4-13C4,5-oxide is reported.The compounds were synthesized in yields of 15percent each from unlabeled precursors. 13C NMR analysis of the conversion of the 4,5-oxides to 4-phenols and 5-phenols (NIH shift) revealed a very strong electronic effect of a 9-methoxy substituent, which gave only the 4-phenol, and a significant but weaker effect of an 8-methoxy substituent, which gave both phenols with the 5-phenol predominating.

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