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20820-77-3

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20820-77-3 Usage

Chemical Properties

Yellow Oil

Uses

Protected Aconitic Acid.

Check Digit Verification of cas no

The CAS Registry Mumber 20820-77-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,0,8,2 and 0 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 20820-77:
(7*2)+(6*0)+(5*8)+(4*2)+(3*0)+(2*7)+(1*7)=83
83 % 10 = 3
So 20820-77-3 is a valid CAS Registry Number.
InChI:InChI=1/C9H12O6/c1-13-7(10)4-6(9(12)15-3)5-8(11)14-2/h4H,5H2,1-3H3/b6-4-

20820-77-3SDS

SAFETY DATA SHEETS

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

Version: 1.0

Creation Date: Aug 13, 2017

Revision Date: Aug 13, 2017

1.Identification

1.1 GHS Product identifier

Product name Trimethyl Aconitate

1.2 Other means of identification

Product number -
Other names Trimethyl aconitate

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:20820-77-3 SDS

20820-77-3Downstream Products

20820-77-3Relevant articles and documents

PROCESS FOR THE PREPARATION OF DIALKYL 3-OXOGLUTARATES

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Page 20-26, (2010/02/09)

This invention relates to a process for the preparation of 3-oxoglutarates of general formula (I), wherein R stands for methyl or ethyl. Said process comprises reacting citric acid of the formula (II) or the monohydrate thereof with chlorosulphonic acid in a lower chlorinated aliphatic hydrocarbon and reacting the intermediate thus obtained with methanol or ethanol by applying a ratio of lower chlorinated aliphatic hydrocarbon to chlorosulphonic acid in the range of 0,1:1 to 1:1 by volume and carrying out the addition of citric acid to the mixture of chlorosulphonic acid and lower aliphatic hydrocarbon at a rate of 1 - 2 kg/minute. The dialkyl 3-oxoglutarates are valuable pharmaceutical intermediates.

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