3,4-Difluorosalicylic acid

Modify Date: 2024-01-06 19:58:38

3,4-Difluorosalicylic acid Structure
3,4-Difluorosalicylic acid structure
Common Name 3,4-Difluorosalicylic acid
CAS Number 189283-51-0 Molecular Weight 174.102
Density 1.6±0.1 g/cm3 Boiling Point 281.5±40.0 °C at 760 mmHg
Molecular Formula C7H4F2O3 Melting Point 177-179ºC
MSDS USA Flash Point 124.1±27.3 °C

 Names

Name 3,4-difluoro-2-hydroxybenzoic acid
Synonym More Synonyms

 Chemical & Physical Properties

Density 1.6±0.1 g/cm3
Boiling Point 281.5±40.0 °C at 760 mmHg
Melting Point 177-179ºC
Molecular Formula C7H4F2O3
Molecular Weight 174.102
Flash Point 124.1±27.3 °C
Exact Mass 174.012848
PSA 57.53000
LogP 2.99
Vapour Pressure 0.0±0.6 mmHg at 25°C
Index of Refraction 1.557

 Safety Information

Hazard Codes Xi:Harmful/Irritant;
HS Code 2918290000

 Synthetic Route

~94%

3,4-Difluorosalicylic acid Structure

3,4-Difluorosal...

CAS#:189283-51-0

Literature: Ihara Chemical Industry Co., Ltd. Patent: US6166246 A1, 2000 ;

~94%

3,4-Difluorosalicylic acid Structure

3,4-Difluorosal...

CAS#:189283-51-0

Literature: Umezu, Kazuto; Tabuchi, Fumiya; Kimura, Yoshikazu Journal of Fluorine Chemistry, 2003 , vol. 121, # 1 p. 97 - 99

~%

3,4-Difluorosalicylic acid Structure

3,4-Difluorosal...

CAS#:189283-51-0

Literature: Synthesis, , # 10 p. 1609 - 1618

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3,4-Difluorosalicylic acid Structure

3,4-Difluorosal...

CAS#:189283-51-0

Literature: Journal of Fluorine Chemistry, , vol. 121, # 1 p. 97 - 99

 Customs

HS Code 2918290000
Summary HS: 2918290000 other carboxylic acids with phenol function but without other oxygen function, their anhydrides, halides, peroxides, peroxyacids and their derivatives Tax rebate rate:9.0% Supervision conditions:AB(certificate of inspection for goods inward,certificate of inspection for goods outward) VAT:17.0% MFN tariff:6.5% General tariff:30.0%

 Synonyms

Benzoic acid, 3,4-difluoro-2-hydroxy-
3,4-Difluoro-2-hydroxybenzoic acid
3,4-difluorosalicylic acid
PC7835
MFCD03428564
3,4-diflouro-2-hydroxy benzoic acid
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