Shanghai Nianxing Industrial Co., Ltd
China
Product Name: 3,5-Dichloro-2-hydroxybenzoic 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: 3,5-Dichloro-2-hydroxybenzoic acid
Price: ￥458.0/25g
Purity: 98.0%
Stocking Period: 2 Day
Contact: Liu jia
Email: 2130147988@qq.com

Dayang Chem (Hangzhou) Co., Ltd.
China
Product Name: 3,5-Dichlorosalicylic acid
Price: $Inquiry/100g $Inquiry/1kg $Inquiry/100kg $Inquiry/1000kg
Purity: 98.0%
Stocking Period: Inquiry
Contact: Ms Wang
Email: enquiry@dycnchem.com

Henan Tianfu Chemical Co., Ltd.
China
Product Name: 3,5-Dichlorosalicylic acid
Price: $Inquiry/1kg $Inquiry/25kg $Inquiry/1000kg $Inquiry/10ton
Purity: 99.0%
Stocking Period: Inquiry
Contact: Anson
Email: info@tianfuchem.com

320-72-9

320-72-9 structure

320-72-9 structure

Name: 3,5-Dichloro-2-hydroxybenzoic acid
Chemical Name: 3,5-dichloro-2-hydroxybenzoic acid
CAS Number: 320-72-9
Molecular Formula: C₇H₄Cl₂O₃
Molecular Weight: 207.011
Catalog: Chemical reagent Organic reagent Aromatic acid
Create Date: 2018-03-02 08:00:00
Modify Date: 2025-08-26 21:29:19

Name	3,5-dichloro-2-hydroxybenzoic acid
Synonyms	3,5-Cl2salH 3,5-Dichlorosalicylic acid Salicylic acid,3,5-dichloro Benzoic acid,3,5-dichloro-2-hydroxy USAF DO-68 Benzoic acid, 3,5-dichloro-2-hydroxy- EINECS 206-281-8 2-Hydroxy-3,5-dichlorobenzoic acid 3,5-dichloro-2-hydroxy-benzoic acid 3,5-Dichloro-2-hydroxybenzoic acid MFCD00002442

Density	1.7±0.1 g/cm3
Boiling Point	319.3±42.0 °C at 760 mmHg
Melting Point	221-224 °C
Molecular Formula	C₇H₄Cl₂O₃
Molecular Weight	207.011
Flash Point	146.9±27.9 °C
Exact Mass	205.953751
PSA	57.53000
LogP	4.40
Vapour Pressure	0.0±0.7 mmHg at 25°C
Index of Refraction	1.641

CHEMICAL IDENTIFICATION

RTECS NUMBER :: VO2450000

CHEMICAL NAME :: Salicylic acid, 3,5-dichloro-

CAS REGISTRY NUMBER :: 320-72-9

BEILSTEIN REFERENCE NO. :: 2210803

LAST UPDATED :: 199709

DATA ITEMS CITED :: 2

MOLECULAR FORMULA :: C7-H4-Cl2-O3

MOLECULAR WEIGHT :: 207.01

WISWESSER LINE NOTATION :: QVR BQ CG EG

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

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

ROUTE OF EXPOSURE :: Intraperitoneal

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 50 mg/kg

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

REFERENCE :: NTIS** National Technical Information Service. (Springfield, VA 22161) Formerly U.S. Clearinghouse for Scientific & Technical Information. Volume(issue)/page/year: AD277-689

Symbol	GHS07
Signal Word	Warning
Hazard Statements	H315-H319-H335
Precautionary Statements	P261-P305 + P351 + P338
Personal Protective Equipment	dust mask type N95 (US);Eyeshields;Gloves
Hazard Codes	Xn:Harmful;
Risk Phrases	R22;R36/37/38
Safety Phrases	S37/39-S26
RIDADR	NONH for all modes of transport
RTECS	VO2450000
HS Code	2918290000

Precursor 8
69-72-7 7606-87-3 855471-00-0 855749-74-5
855470-98-3 321-14-2 97-05-2 15396-37-9
DownStream 10
4524-78-1 40932-60-3 2040-83-7 30431-50-6
2577-72-2 30431-53-9 95-95-4 609-89-2
58-90-2 13340-60-8

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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