Shanghai Nianxing Industrial Co., Ltd
China
Product Name: 4,5-Difluorophthalic acid
Price:
Purity: 98.0%
Stocking Period: 10 Day
Contact: Yang

Shanghai Jizhi Biochemical Technology Co., Ltd
China
Product Name: 4,5-Difluorophthalic acid
Price: ￥478.0/250mg ￥1128.0/1g
Purity: 98.0%
Stocking Period: 3 Day
Contact: Liu jia

Dayang Chem (Hangzhou) Co., Ltd.
China
Product Name: 4,5-Difluorophthalic acid
Price: $Inquiry/100g $Inquiry/1kg $Inquiry/100kg $Inquiry/1000kg
Purity: 98.0%
Stocking Period: Inquiry
Contact: Ms Wang

Henan Tianfu Chemical Co., Ltd.
China
Product Name: 4,5-Difluorophthalic acid
Price: $Inquiry/1kg $Inquiry/25kg $Inquiry/1000kg $Inquiry/10ton
Purity: 99.0%
Stocking Period: Inquiry
Contact: Anson

18959-31-4

18959-31-4 structure

18959-31-4 structure

Name: 4,5-Difluorophthalic acid
Chemical Name: 4,5-Difluorophthalic acid
CAS Number: 18959-31-4
Molecular Formula: C₈H₄F₂O₄
Molecular Weight: 202.112
Catalog: Chemical reagent Organic reagent Aromatic hydrocarbon
Create Date: 2018-04-12 08:00:00
Modify Date: 2024-01-02 18:11:26

Name	4,5-Difluorophthalic acid
Synonyms	4,5-Difluor-phthalsaeure 1,2-benzenedicarboxylic acid,4,5-difluoro 1,2-Benzenedicarboxylic acid, 4,5-difluoro- 4,5-Difluorophthalic acid 4,5-Difluorobenzene-1,2-dicarboxylic acid 4,5-Difluoro phthalic acid

Density	1.6±0.1 g/cm3
Boiling Point	378.7±42.0 °C at 760 mmHg
Melting Point	156 °C
Molecular Formula	C₈H₄F₂O₄
Molecular Weight	202.112
Flash Point	182.9±27.9 °C
Exact Mass	202.007767
PSA	74.60000
LogP	1.50
Vapour Pressure	0.0±0.9 mmHg at 25°C
Index of Refraction	1.566

Hazard Codes	Xi
HS Code	2917399090

942-06-3 structure

942-06-3

~%

18959-31-4 structure

18959-31-4

Literature: US2006/223830 A1, ; Page/Page column 39 ; US 20060223830 A1

Precursor 1
942-06-3
DownStream 2
455-86-7 83506-93-8

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%