2,3,5,6-tetramethylterephthalic acid

Modify Date: 2024-01-02 12:08:37

2,3,5,6-tetramethylterephthalic acid Structure
2,3,5,6-tetramethylterephthalic acid structure
 Common Name 2,3,5,6-tetramethylterephthalic acid
CAS Number 14458-05-0 Molecular Weight 222.23700
Density 1.237g/cm3 Boiling Point 402.6ºC at 760mmHg
Molecular Formula C12H14O4 Melting Point N/A
MSDS N/A Flash Point 211.4ºC

 Names

Name 2,3,5,6-tetramethylterephthalic acid
Synonym More Synonyms

 Chemical & Physical Properties

Density 1.237g/cm3
Boiling Point 402.6ºC at 760mmHg
Molecular Formula C12H14O4
Molecular Weight 222.23700
Flash Point 211.4ºC
Exact Mass 222.08900
PSA 74.60000
LogP 2.31660
Vapour Pressure 3.33E-07mmHg at 25°C
Index of Refraction 1.575

 Safety Information

Hazard Codes Xi
HS Code 2917399090

 Synthetic Route

Carbon dioxide structure

Carbon dioxide

CAS#:124-38-9
Potassium benzoate structure

Potassium benzoate

CAS#:582-25-2

~0%

Terephthalic acid structure

Terephthalic acid

CAS#:100-21-0
2-Methyl-1,4-benzenedicarboxylic acid structure

2-Methyl-1,4-be...

CAS#:5156-01-4
Detail
Literature: Mossi and Ghisolfi International S.A. Patent: EP1232136 B1, 2005 ; Location in patent: Page/Page column 6-7 ;
2,2-Dimethylvaleroyl chloride structure

2,2-Dimethylval...

CAS#:15721-22-9
3,6-Bis(hydroxymethyl)durene structure

3,6-Bis(hydroxy...

CAS#:7522-62-5

~%

2,3,5,6-tetramethylterephthalic acid Structure

2,3,5,6-tetrame...

CAS#:14458-05-0
Literature: Syntex Inc. Patent: US5055451 A1, 1991 ; US 5055451 A
3,6-Bis(hydroxymethyl)durene structure

3,6-Bis(hydroxy...

CAS#:7522-62-5

~16%

2,3,5,6-tetramethylterephthalic acid Structure

2,3,5,6-tetrame...

CAS#:14458-05-0
Literature: Hijazi, Akram; Kemmegne-Mbouguen, Justin Claude; Floquet, Sebastien; Marrot, Jerome; Fize, Jennifer; Artero, Vincent; David, Olivier; Magnier, Emmanuel; Pegot, Bruce; Cadot, Emmanuel Dalton Transactions, 2013 , vol. 42, # 14 p. 4848 - 4858
Carbon dioxide structure

Carbon dioxide

CAS#:124-38-9
1,4-dibromo-2,3,5,6-tetramethylbenzene structure

1,4-dibromo-2,3...

CAS#:1646-54-4

~%

2,3,5,6-tetramethylterephthalic acid Structure

2,3,5,6-tetrame...

CAS#:14458-05-0
Literature: Taher, Deeb; Corrigan, John F. Organometallics, 2011 , vol. 30, # 21 p. 5943 - 5952
1,2,4,5-Tetramethylbenzene structure

1,2,4,5-Tetrame...

CAS#:95-93-2

~%

2,3,5,6-tetramethylterephthalic acid Structure

2,3,5,6-tetrame...

CAS#:14458-05-0
Literature: Hijazi, Akram; Kemmegne-Mbouguen, Justin Claude; Floquet, Sebastien; Marrot, Jerome; Fize, Jennifer; Artero, Vincent; David, Olivier; Magnier, Emmanuel; Pegot, Bruce; Cadot, Emmanuel Dalton Transactions, 2013 , vol. 42, # 14 p. 4848 - 4858
Benzene,1,4-bis(chloromethyl)-2,3,5,6-tetramethyl- structure

Benzene,1,4-bis...

CAS#:3022-16-0

~%

2,3,5,6-tetramethylterephthalic acid Structure

2,3,5,6-tetrame...

CAS#:14458-05-0
Literature: Hijazi, Akram; Kemmegne-Mbouguen, Justin Claude; Floquet, Sebastien; Marrot, Jerome; Fize, Jennifer; Artero, Vincent; David, Olivier; Magnier, Emmanuel; Pegot, Bruce; Cadot, Emmanuel Dalton Transactions, 2013 , vol. 42, # 14 p. 4848 - 4858
2,3,5,6-tetramethylterephthalaldehyde structure

2,3,5,6-tetrame...

CAS#:7072-01-7

~%

2,3,5,6-tetramethylterephthalic acid Structure

2,3,5,6-tetrame...

CAS#:14458-05-0
Literature: Esso Research and Eng. Co. Patent: US2806877 , 1954 ;

 Customs

HS Code 2917399090
Summary 2917399090 aromatic polycarboxylic acids, their anhydrides, halides, peroxides, peroxyacids and their derivatives。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:6.5%。General tariff:30.0%

 Synonyms

2,3,5,6-tetramethyl-1,4-benzenedicarboxylate
tetramethylterephthalic acid
2,3,5,6-tetramethyl-1,4-benzenedicarboxylic acid
2,3,5,6-tetramethylbenzene-1,4-dicarboxylic acid
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Related Compounds: More...
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2,3,5,6-Tetrafluoroterephthalic acid
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2,3,5,6-Tetrafluoropyridine-4-Propionic Acid
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4-Methoxy-2,3,5,6-tetrafluorobenzoic acid
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(2,3,5,6-tetrachloropyridin-4-yl)phosphonic acid
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