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91903-21-8

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91903-21-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 91903-21-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,1,9,0 and 3 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 91903-21:
(7*9)+(6*1)+(5*9)+(4*0)+(3*3)+(2*2)+(1*1)=128
128 % 10 = 8
So 91903-21-8 is a valid CAS Registry Number.

91903-21-8Downstream Products

91903-21-8Relevant articles and documents

Photochemistry of bisphenol F in aqueous solutions: A mechanistic study

Salomatova, Victoria,Pozdnyakov, Ivan,Sherin, Peter,Grivin, Vjacheslav,Plyusnin, Victor

, p. 45 - 50 (2015)

In the present work aqueous photochemistry of bisphenol F has been studied by means of stationary (282 nm) and laser flash photolysis (266 nm). Photoionization with formation of hydrated electron - phenoxyl radical pair was observed to be the main primary photochemical process (φmono = 2 × 10-2). Phenoxyl radical decays in recombination and reaction with superoxide anion radical formed during scavenging of hydrated electron by dissolved oxygen. The quantum yield of BPF photodegradation was evaluated to be 2 × 10-3 upon 282 nm exposure. The main primary product of BPF photolysis determined by LC-MS is hydroxylated BPF.

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