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138514-31-5

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  • 5-Thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid, 3-[(1Z)-2-(4-methyl-5-thiazolyl)ethenyl]-8-oxo-7-[(phenylacetyl)amino]-, (4-methoxyphenyl)methyl ester, (6R,7R)-

    Cas No: 138514-31-5

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138514-31-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 138514-31-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,8,5,1 and 4 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 138514-31:
(8*1)+(7*3)+(6*8)+(5*5)+(4*1)+(3*4)+(2*3)+(1*1)=125
125 % 10 = 5
So 138514-31-5 is a valid CAS Registry Number.

138514-31-5SDS

SAFETY DATA SHEETS

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

Version: 1.0

Creation Date: Aug 19, 2017

Revision Date: Aug 19, 2017

1.Identification

1.1 GHS Product identifier

Product name p-Methoxybenzyl 7-phenylacetamido-3(Z)-(4-methylthiazol-5-yl)vinyl-3-cephem-4-carboxylate

1.2 Other means of identification

Product number -
Other names p-methoxybenzyl 7-phenylacetamido-3-(4-methylthiazol-5-yl)vinyl-3-cephem-4-carboxylate

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

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

More Details:138514-31-5 SDS

138514-31-5Relevant articles and documents

Cefditoren pivoxil intermediate preparation method

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Paragraph 0024; 0027, (2016/11/28)

The invention discloses a cefditoren pivoxil intermediate preparation method. The method includes steps: 1) in existence of sodium iodide, allowing contact reaction of GCLE and triphenylphosphine in a first mixed solvent, cooling to 8-10 DEG C, adding sod

AN IMPROVED PROCESS FOR THE PREPARATION OF CEFDITOREN

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Page 9, (2010/02/10)

The present invention relates to an improved process for the preparation of Cefditoren of formula (I), the said process comprising the steps of: i) converting the compound of formula (II) to a compound of the formula (III) using TPP and sodium iodide in the presence of THF, water, and base; ii) reacting the compound of formula (III) with 4-methyl-5-formyl-thiazole to produce a compound of formula (IV); iii) deesterifying the compound of the formula (IV) to yield compound of formula (V); iv) converting the compound of formula (V) to compound of formula (VI) in the presence of a base and solvent; v) converting the compound of formula (VI) into compound of formula (VII) by enzymatic hydrolysis; and vi) reacting compound of formula (VII) with compound of formula (VIII) in the presence of solvent and base to produce compound of formula (I).

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