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2263-53-8

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2263-53-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 2263-53-8 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 2,2,6 and 3 respectively; the second part has 2 digits, 5 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 2263-53:
(6*2)+(5*2)+(4*6)+(3*3)+(2*5)+(1*3)=68
68 % 10 = 8
So 2263-53-8 is a valid CAS Registry Number.

2263-53-8SDS

SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 16, 2017

Revision Date: Aug 16, 2017

1.Identification

1.1 GHS Product identifier

Product name sodium,2,3,4,5,6-pentafluorophenolate

1.2 Other means of identification

Product number -
Other names PC6646

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:2263-53-8 SDS

2263-53-8Relevant articles and documents

A PROCESS FOR THE PREPARATION OF SOFOSBUVIR INTERMEDIATES and ITS POLYMORPH

-

Page/Page column 6, (2016/12/01)

The present invention provides a novel process for preparation N-[(2,3,4,5,6- Pentafluorophenoxy)phenoxyphosphinyl]-L-alanine 1-methylethyl ester (formula 2) and resolving the formula 2 in the presence base to form N-[(S)-(2,3,4,5,6- Pentafluorophenoxy)phenoxyphosphinyl]-L-alanine 1-methylethyl ester (formula 2').

A mechanistic study of the alkaline hydrolysis of diaryl sulfate diesters

Younker, Jarod M.,Hengge, Alvan C.

, p. 9043 - 9048 (2007/10/03)

Nearly all of the reported studies of reactions of sulfate diesters are for dialkyl or alkyl aryl diesters, which undergo reaction by carbon-oxygen bond fission. Sulfuryl transfer reactions of sulfate diesters (RO-SO 2-OR′) proceeding by attack at sulfur have been little explored. When both ester groups are aryl groups the hydrolysis reaction (sulfuryl transfer to water) occurs by way of attack at sulfur. The alkaline hydrolysis of diaryl sulfate diesters was shown to obey first-order kinetics with respect to [-OH] and proceed through S-O bond fission, in a mechanism that is most likely concerted. Activation parameters for 4-chloro-3-nitrophenyl phenyl sulfate and 4-nitrophenyl phenyl sulfate gave the following respective values: ΔH? = 88.0 ± 0.1 and 84.83 ± 0.06 kJ mol-1 and ΔS? = -37 ± 1 and -50.2 ± 0.5 J mol-1 deg-1. The dependence of the second-order rate constant for hydrolysis on leaving group pKa was analyzed giving a β1g slope of -0.7 ± 0.2 and a Leffler α parameter value of 0.36. A 15k kinetic isotope effect (KIE) for the hydroxide attack on 4-nitrophenyl phenyl sulfate of 1.0000 ±0.0005 and an 18k1g KIE value of 1.003±0.002 were obtained.

Electron Affinities of Fluorinated Phenoxy Radicals

Hernandez-Gil, N.,Wentworth, W. E.,Chen, E. C. M.

, p. 6181 - 6185 (2007/10/02)

The electron-capture coefficients for five fluorophenoxy phenyl ethers have been determined by using "short" pulse intervals.The temperature dependence of the electron-capture coeficients can be used to determine the electron affinities of the molecules a

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