Shanghai Nianxing Industrial Co., Ltd
China
Product Name: Homophthalic acid
Price: Check
Purity: 98.0%
Stocking Period: 10 Day
Contact: Yang
Email: sales@echemcloud.com

Shanghai Jizhi Biochemical Technology Co., Ltd
China
Product Name: Homophthalic acid
Price: ￥438.0/25g ￥2148.0/100g
Purity: 98.0%
Stocking Period: 2 Day
Contact: Liu jia
Email: 2130147988@qq.com

Dayang Chem (Hangzhou) Co., Ltd.
China
Product Name: Homophthalic acid
Price: $Inquiry/100g $Inquiry/1kg $Inquiry/100kg $Inquiry/1000kg
Purity: 98.0%
Stocking Period: Inquiry
Contact: Ms Wang
Email: enquiry@dycnchem.com

89-51-0

89-51-0 structure

89-51-0 structure

Name: Homophthalic acid
Chemical Name: Homophthalic acid
CAS Number: 89-51-0
Molecular Formula: C₉H₈O₄
Molecular Weight: 180.157
Catalog: Chemical reagent Organic reagent fatty acid
Create Date: 2018-03-21 08:00:00
Modify Date: 2025-08-20 16:57:37

Name	Homophthalic acid
Synonyms	2-(Carboxymethyl)benzoic acid Benzeneacetic acid, 2-carboxy- a-Carboxy-o-toluic Acid MFCD00004326 EINECS 201-913-9 Homophthalic Acid

Density	1.4±0.1 g/cm3
Boiling Point	389.5±17.0 °C at 760 mmHg
Melting Point	178-182 °C(lit.)
Molecular Formula	C₉H₈O₄
Molecular Weight	180.157
Flash Point	203.5±17.4 °C
Exact Mass	180.042252
PSA	74.60000
LogP	1.18
Vapour Pressure	0.0±0.9 mmHg at 25°C
Index of Refraction	1.600
Water Solubility	12 g/L (20 ºC)

CHEMICAL IDENTIFICATION

RTECS NUMBER :: CY1575590

CHEMICAL NAME :: Benzeneacetic acid, 2-carboxy-

CAS REGISTRY NUMBER :: 89-51-0

BEILSTEIN REFERENCE NO. :: 1872069

LAST UPDATED :: 199701

DATA ITEMS CITED :: 2

MOLECULAR FORMULA :: C9-H8-O4

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :: LD - Lethal dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: >500 mg/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: NCNSA6 National Academy of Sciences, National Research Council, Chemical-Biological Coordination Center, Review. (Washington, DC) Volume(issue)/page/year: 5,7,1953

Personal Protective Equipment	Eyeshields;Gloves;type N95 (US);type P1 (EN143) respirator filter
Hazard Codes	Xi:Irritant;
Risk Phrases	R36/37/38
Safety Phrases	S22-S24/25-S37/39-S26
RIDADR	NONH for all modes of transport
WGK Germany	3
RTECS	CY1575590
HS Code	2917399090

Precursor 10
95-13-6 201230-82-2 65999-53-3 85267-36-3
88-67-5 141-97-9 100397-38-4 703-59-3
528-46-1 101268-34-2
DownStream 10
111686-63-6 106180-94-3 106180-95-4 34014-51-2
491-30-5 141468-73-7 4456-77-3 4702-34-5
4385-35-7 493-05-0

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%

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