Shanghai Nianxing Industrial Co., Ltd
China
Product Name: 3,4-Dichlorobenzoic acid
Price: Check
Purity: 99.0%
Stocking Period: 10 Day
Contact: Yang
Email: sales@echemcloud.com

Shanghai Jizhi Biochemical Technology Co., Ltd
China
Product Name: 3,4-Dichlorobenzoic acid
Price: ￥458.0/100g ￥148.0/25g
Purity: 99.0%
Stocking Period: 2 Day
Contact: Liu jia
Email: 2130147988@qq.com

Dayang Chem (Hangzhou) Co., Ltd.
China
Product Name: 3,4-Dichlorobenzoic acid
Price: $Inquiry/100g $Inquiry/1kg $Inquiry/100kg $Inquiry/1000kg
Purity: 98.0%
Stocking Period: Inquiry
Contact: Ms Wang
Email: enquiry@dycnchem.com

51-44-5

51-44-5 structure

51-44-5 structure

Name: 3,4-Dichlorobenzoic acid
Chemical Name: 3,4-dichlorobenzoic acid
CAS Number: 51-44-5
Molecular Formula: C₇H₄Cl₂O₂
Molecular Weight: 191.012
Catalog: Chemical reagent Organic reagent Aromatic acid
Create Date: 2018-09-09 15:10:59
Modify Date: 2025-08-26 22:17:22

Name	3,4-dichlorobenzoic acid
Synonyms	MFCD00002492 3,4-dichlorbenzoic acid Benzoic acid,3,4-dichloro EINECS 200-099-2 3,4dichlorobenzoic acid Benzoic acid, 3,4-dichloro- 3,4-Dichlorobenzoic acid Benzoic acid,4-dichloro 3,4-Dichlor-benzoesaeure

Density	1.5±0.1 g/cm3
Boiling Point	317.8±22.0 °C at 760 mmHg
Melting Point	204-206 °C(lit.)
Molecular Formula	C₇H₄Cl₂O₂
Molecular Weight	191.012
Flash Point	146.0±22.3 °C
Exact Mass	189.958832
PSA	37.30000
LogP	3.53
Vapour Pressure	0.0±0.7 mmHg at 25°C
Index of Refraction	1.599
Water Solubility	insoluble

CHEMICAL IDENTIFICATION

RTECS NUMBER :: DG7175000

CHEMICAL NAME :: Benzoic acid, 3,4-dichloro-

CAS REGISTRY NUMBER :: 51-44-5

BEILSTEIN REFERENCE NO. :: 2044777

LAST UPDATED :: 199709

DATA ITEMS CITED :: 2

MOLECULAR FORMULA :: C7-H4-Cl2-O2

MOLECULAR WEIGHT :: 191.01

WISWESSER LINE NOTATION :: QVR CG DG

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

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

ROUTE OF EXPOSURE :: Subcutaneous

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 400 mg/kg

TOXIC EFFECTS :: Behavioral - altered sleep time (including change in righting reflex) Behavioral - muscle weakness Lungs, Thorax, or Respiration - dyspnea

REFERENCE :: BCPCA6 Biochemical Pharmacology. (Pergamon Press Inc., Maxwell House, Fairview Park, Elmsford, NY 10523) V.1- 1958- Volume(issue)/page/year: 13,1538,1964

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	Xi:Irritant;
Risk Phrases	R36/37/38
Safety Phrases	S26-S36-S37/39
RIDADR	NONH for all modes of transport
WGK Germany	3
RTECS	DG7175000
HS Code	29163900

Precursor 10
1805-32-9 95-75-0 6287-38-3 18880-04-1
1152957-25-9 623-04-1 3024-72-4 2905-68-2
67-56-1 74-11-3
DownStream 10
37908-98-8 50-82-8 37908-96-6 1805-32-9
3964-58-7 100-21-0 528-44-9 1967-31-3
74-11-3 99-50-3

HS Code	2916399090
Summary	2916399090 other aromatic monocarboxylic acids, their anhydrides, halides, peroxides, peroxyacids and their derivatives VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:6.5% General tariff:30.0%

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