Shanghai Nianxing Industrial Co., Ltd
China
Product Name: Palmitic acid
Price: Check
Purity: 98.0%
Stocking Period: 10 Day
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Dayang Chem (Hangzhou) Co., Ltd.
China
Product Name: 4-Hydroxyisophthalic acid
Price: $Inquiry/100g $Inquiry/1kg $Inquiry/100kg $Inquiry/1000kg
Purity: 98.0%
Stocking Period: Inquiry
Contact: Ms Wang
Email: enquiry@dycnchem.com

636-46-4

636-46-4 structure

636-46-4 structure

Name: 4-Hydroxyisophthalic acid
Chemical Name: 4-Hydroxyisophthalic acid
CAS Number: 636-46-4
Molecular Formula: C₈H₆O₅
Molecular Weight: 182.130
Create Date: 2018-05-27 08:00:00
Modify Date: 2026-07-05 12:12:40

Name	4-Hydroxyisophthalic acid
Synonyms	RECHEM AL BE 0104 Acetylsalicylic Acid Impurity B (4-Hydroxyisophthalic Acid) 4-Hydroxyisophthalic Aspirin (Acetylsalicylic Acid) Impurity B 4-HYDROXYBENZENE-1,3-DICBOXYLIC ACID 4-HYDROXY-1,3-BENZENEDECBOXYLIC ACID 4-HYDROYLISOPHTHALIC ACID ACETYLSALISYLIC ACID IMP B Acetylsalicylic Acid Impurity B 4-hipa 4-hydroxy-3-benzenedicboxylicacid 4-Hydroxy-m-phthalic acid Acetylsalicylic Acid Impurity B (Aspirin Impurity B) HYDROXYISOPHTHALIC ACID, 4 4-Hydroxyisophthalic Acid(Salicylic Acid RCB) 4-Hydroxy Isopthalic acid HYDROXYISOPHTHALIC ACID 4-(RG) 4-Hydroxy Isophthallic Acid 4-Hydroxyisophthalic acid(4-HIPA) 4-Hydroxyisophthalic acid-RM Acetylsalicylic Acid Impurity B (Salicylic Acid Related Compound B) 4-Hydroxy-1,3-benzenedecarboxylic acid 4-HYDROXYISOPHTHALIC ACID 4-Hydroxyisophthalic acid (4-Hydroxybenzene-1,3-dicboxylic acid) 4-Hydroxybenzene-1,3-dicarboxylic acid Salicylic Acid Related Compound B (4-hydroxyisophthalic acid) Aspirin IMpurity B MFCD00010391 Aspirin Impurity 2 Acetylsalicylic Acid Impurity 2（Acetylsalicylic Acid Impurity B） Aspirin Impurity BQ: What is Aspirin Impurity B Q: What is the CAS Number of Aspirin Impurity B Q: What is the storage condition of Aspirin Impurity B Q: What e the applications of Aspirin Impurity B EINECS 211-258-0 4-HydroxyisophthalicAcid> Salicylic acid impurity B CRS 4-Hydroxyisophthalicacid(AspirinImpurity) 1,3-Benzenedicboxylicacid, 4-hydroxy Salicylic Acid Impurity B Eupirina Salicylic Acid Impurityuriy B Salicylic Acid Related Compound B 4-HYDROXY-1,3-BENZENEDICBOXYLIC ACID 4-hydroxy-isophthalicaci Mesalazine Impurity(4-hydroxylphthallic acid)

Density	1.6±0.1 g/cm3
Boiling Point	447.5±40.0 °C at 760 mmHg
Melting Point	>300°C
Molecular Formula	C₈H₆O₅
Molecular Weight	182.130
Flash Point	238.6±23.8 °C
Exact Mass	182.021530
PSA	94.83000
LogP	2.09
Vapour Pressure	0.0±1.1 mmHg at 25°C
Index of Refraction	1.666

CHEMICAL IDENTIFICATION

RTECS NUMBER :: NT2544000

CHEMICAL NAME :: Isophthalic acid, 4-hydroxy-

CAS REGISTRY NUMBER :: 636-46-4

BEILSTEIN REFERENCE NO. :: 2211981

LAST UPDATED :: 199612

DATA ITEMS CITED :: 3

MOLECULAR FORMULA :: C8-H6-O5

MOLECULAR WEIGHT :: 182.14

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Intraperitoneal

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 1071 mg/kg

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

REFERENCE :: BJPCAL British Journal of Pharmacology and Chemotherapy. (London, UK) V.1-33, 1946-68. For publisher information, see BJPCBM. Volume(issue)/page/year: 11,20,1956

TYPE OF TEST :: LDLo - Lowest published lethal dose

ROUTE OF EXPOSURE :: Intraperitoneal

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 1300 mg/kg

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

REFERENCE :: FRPSAX Farmaco, Edizione Scientifica. (Casella Postale 227, 27100 Pavia, Italy) V.8-43 1953-88 For publisher information, see FRMCE8 Volume(issue)/page/year: 16,200,1961 ** OTHER MULTIPLE DOSE TOXICITY DATA **

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 73500 mg/kg/14W-C

TOXIC EFFECTS :: Related to Chronic Data - death

REFERENCE :: BJPCAL British Journal of Pharmacology and Chemotherapy. (London, UK) V.1-33, 1946-68. For publisher information, see BJPCBM. Volume(issue)/page/year: 11,20,1956

Symbol	GHS05, GHS07
Signal Word	Danger
Hazard Statements	H302-H318
Precautionary Statements	P280-P305 + P351 + P338
Hazard Codes	Xi
Risk Phrases	R36/37/38
Safety Phrases	S26-S36/37/39
RIDADR	NONH for all modes of transport
RTECS	NT2544000
HS Code	2918290000

Precursor 9
6939-93-1 63296-13-9 619-72-7 99-77-4
497-19-8 201230-82-2 119-30-2 2206-43-1
124-38-9
DownStream 9
88-89-1 616-76-2 5985-24-0 79128-78-2
41684-11-1 22955-73-3 20244-61-5 124-38-9
69-72-7

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%

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