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28240-15-5

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28240-15-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 28240-15-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,8,2,4 and 0 respectively; the second part has 2 digits, 1 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 28240-15:
(7*2)+(6*8)+(5*2)+(4*4)+(3*0)+(2*1)+(1*5)=95
95 % 10 = 5
So 28240-15-5 is a valid CAS Registry Number.

28240-15-5SDS

SAFETY DATA SHEETS

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

Version: 1.0

Creation Date: Aug 18, 2017

Revision Date: Aug 18, 2017

1.Identification

1.1 GHS Product identifier

Product name (6R)-3-hydroxymethyl-8-oxo-7t-(2-phenyl-acetylamino)-(6rH)-5-thia-1-aza-bicyclo[4.2.0]oct-2-ene-2-carboxylic acid

1.2 Other means of identification

Product number -
Other names (R)-3-Hydroxymethyl-8-oxo-7-phenylacetylamino-5-thia-1-aza-bicyclo[4.2.0]oct-2-ene-2-carboxylic acid

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:28240-15-5 SDS

28240-15-5Relevant articles and documents

β-LACTAMASE TARGETED PHOTOSENSITIZER FOR PESTICIDE AND PEST DETECTION

-

, (2014/01/09)

Photoactivatable pesticide compounds and methods for the use thereof in the elimination and detection of pests are provided.

Enzymatic deprotection of the cephalosporin 3′-acetoxy group using Candida antarctica lipase B

Patterson, Leslie D.,Miller, Marvin J.

supporting information; scheme or table, p. 1289 - 1292 (2010/04/29)

(Chemical Equation Presented) Cephalosporins remain one of themost important classes of antibiotics. A useful site for derivatization involves generation of and chemistry at the 3′-hydroxymethyl position. While 3′-acetoxymethyl-substituted cephalosporins are readily available, deacetylation to access the free 30-hydroxymethyl group is problematic when the carboxylic acid is protected as an ester. Herein we report that this important transformation has been efficiently accomplished using Candida antarctica lipase B. Although this transformation is difficult to carry out using chemical methods, the enzymatic deacetylation has been successful on gram scale, when the cephalosporin is protected as either the benzhydryl or tert-butyl esters and on the corresponding sulfoxide and sulfone of the tert-butyl ester.

PHOTOACTIVATABLE ANTIMICROBIAL AGENTS

-

Page/Page column 42, (2008/06/13)

Photoactivatable antimicrobial compounds and methods for the use thereof in the treatment of infections are provided.

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