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84080-68-2

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84080-68-2 Usage

Uses

(Z)-tert-Butyl 2-((2-Methoxy-2-oxoethoxy)imino)-3-oxobutanoate is an intermediate for the synthesis of Cefixime-13C,15N2 (C242802), which is labelled Cefixime (C242800). Orally active, third generation cephalosporin antibiotic.

Check Digit Verification of cas no

The CAS Registry Mumber 84080-68-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,4,0,8 and 0 respectively; the second part has 2 digits, 6 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 84080-68:
(7*8)+(6*4)+(5*0)+(4*8)+(3*0)+(2*6)+(1*8)=132
132 % 10 = 2
So 84080-68-2 is a valid CAS Registry Number.

84080-68-2SDS

SAFETY DATA SHEETS

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

Version: 1.0

Creation Date: Aug 17, 2017

Revision Date: Aug 17, 2017

1.Identification

1.1 GHS Product identifier

Product name tert-Butyl 2-methoxycarbonylmethoxyimino-3-oxobutyrate

1.2 Other means of identification

Product number -
Other names -

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:84080-68-2 SDS

84080-68-2Relevant articles and documents

Synthesis of (Z)-2-(2-formamido-4-thiazolyl)-2-(substituted alkoxyimino) acetic acids

Lopez, Miguel,Rodriguez, Zalua,Gonzalez, Maritza,Valdes, Barbara,Velez, Herman,Fini, Adamo

, p. 40 - 46 (2000)

(Z)-2-(2-formamido-4-thiazolyl)-2-(substituted alkoxyimino) acetic acids were synthesized by a new method based on the following sequence of reactions: treatment of the tert-butyl acetoacetate with sodium nitrite, alkylation of the oxime formed with an appropriate alkyl halide, halogenation of methyl α-keto group and simultaneous cleavage of tert-butyl ester with sulfuryl chloride, protection of the obtained acid function with diphenyldiazomethane, formation of the 2-aminothiazole ring by the Hantzsch method with thiourea, formylation of the amino group and selective final cleavage of the diphenylmethyl ester by treatment with trifluoroacetic acid and anisol. The developed procedure allows the synthesis of (Z)-2-(2- formamido-4-thiazolyl)-2-(substituted alkoxyimino) acetic acids, with an ester function in the alkoxyimino group employing a simple method and obtaining higher yields in comparison with the habitually used classic method. (C) 2000 Elsevier Science S.A.

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