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3,3'-Dichlorobenzidine 99 high purity hly 57

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Unit Price:

$1/MT FOB

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CAS No.:

91-94-1

Grade:

industrial Grade

Content:

99%

Port:

qingdao

Brand:

hly

Packaging:

180kg/Cardboard Drum

Price valid (until):

2027-02-28

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Suqian City Hengliyuan Import and Export Trade Co., LTD

Company Type:

Trader

Location:

China

Qualification:

Main Products:

Acrylonitrile,Sodium biselenite methylamine solution,Methylamine [anhydrous],Zinc dust,Hydrogen peroxide solution [content >8%],Triisopropyl borate

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Product Description
Seller Information
Inquiry History

Description

Company Profile ----------
Suqian City Hengliyuan Import and Export Trade Co., LTD is a trading company. The company has introduced advanced scientific and technological achievements from home and abroad, and has superior products from well-known manufacturers at home and abroad. The basic functions are:
1. Domestic trade of various chemical raw materials;
2. Providing price information services and chemical raw material procurement for industrial enterprises;
3. Cooperating with Chinese state-owned enterprise factories, the price and quality are very advantageous.
At present, the company is relying on the combination of industry and trade and global procurement to steadily improve the company's value-added ability and compound competitiveness. We have always been committed to producing high-quality and low-cost goods, so we have been sincerely recognized by many customers. Our goal is to produce the best products and satisfy every customer with professional services and attitudes. We look forward to cooperating with you and establishing a win-win relationship with you. Please rest assured that we will definitely satisfy you.

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----------packaging and delivery ----------

----------Our Advantages---------
High quality with competitive price
1) Standard:BP/USP/EP/Enterprise standard
2) All Purity≥99%
3) We can provide high quality products with factory price
2. Fast delivery
1) Fast shipment.Various transportation methods for your choice.
2) We have our own agent/remailer/distributor who can help us ship our products very fast , and we have stock in the ir for transferring.
3. Good communication and credit
1) Fast response to customer within 5 hours
2) Good business credit in Europe, US, Japan, Korea, Af r ica and so on.

Items	Specifications

3,3'-Dichlorobenzidine (DCB) CAS 91-94-1 Full English Export Specification

1. Basic Chemical Identification

IUPAC Name: 3,3'-dichloro-[1,1'-biphenyl]-4,4'-diamine
Common Names: DCB, 3,3'-Dichlorobenzidine, Dichlorobenzidine, 4,4'-Diamino-3,3'-dichlorobiphenyl
CAS No.: 91-94-1
EC/EINECS No.: 202-109-0
MDL No.: MFCD00008390
Molecular Formula: $\boldsymbol{C_{12}H_{10}Cl_2N_2}$
Molecular Weight: 253.14
SMILES: Clc1cc(N)ccc1c1ccc(N)cc1Cl
HS Code: 2921590090
UN Number: UN 3077
IMDG Hazard Class: Class 9 Environmentally Hazardous Substance (Marine Pollutant), Packing Group III
Signal Word: Danger (Suspected human carcinogen, skin-absorbable toxic aromatic amine)

2. Physicochemical Properties

Appearance: Off-white to pale tan crystalline powder, faint aromatic amine odor
Melting Point: 132–134 °C
Boiling Point: Decomposes before boiling at high temperature
Density (20°C): 1.44 g/cm³
Flash Point: 186.6 °C
Water Solubility: Very slightly soluble (3.1 mg/L at 25°C)
Organic Solubility: Freely soluble in ethanol, methanol, acetone, benzene, glacial acetic acid, dilute mineral acids
Stability: Stable under sealed dark storage; gradually darkens under UV/sunlight oxidation; incompatible with strong oxidants, chlorine bleaches, heavy metal salts, strong alkalis
Toxic Core Feature: IARC Group 2B probable human carcinogen; readily absorbed through skin, inhalation and ingestion; irritates skin, eyes and respiratory tract; extremely toxic to aquatic organisms with long bioaccumulation risk
Reactivity: Dual primary aromatic amine structure, excellent diazotization coupling component for high fastness azo pigments & dyes

3. Standard COA Technical Specifications

Industrial Pigment Grade ≥98.0% (Main Grade for Organic Pigment Production)

Test Item	Standard Specification
Purity (HPLC)	≥98.0 wt%
Melting Range	132.0–134.0 °C
Moisture Content	≤0.10%
HCl Insoluble Impurities	≤0.02%
Free Aniline / Monoamine Impurity	≤0.10%
Chloride Ion Residue	≤0.005%
Heavy Metals (Pb)	≤10 ppm
Color	Uniform pale off-white crystalline powder

High-Purity Lab Reagent Grade ≥99.0%

Ultra-low trace isomers and heavy metal impurities, for diazotization lab research and environmental pollutant reference standards

4. Main Industrial Applications

1. Organic Pigment Intermediate (Largest Consumption)

Core diazotization raw material for high-performance permanent azo pigments with excellent light & solvent fastness:

Pigment Yellow 12, 13, 14, 17, 83; Pigment Red 37, 38, 41; Pigment Orange 13, 34
Widely used in offset printing ink, plastic masterbatch, textile printing paste, coating colorant, rubber color masterbatch

2. Azo Dye Intermediate

Coupling component for acid dyes, direct cotton dyes, disperse polyester dyes with high wash fastness, applied in textile dyeing and paper coloring

3. Polyurethane Monomer Precursor

Raw material for synthesizing dichlorobenzidine diisocyanate (DCBDI), special aromatic diisocyanate for high-temperature resistant PU elastomers and anti-corrosion coatings

4. Environmental Analytical Reference Standard

Certified reference material for detecting carcinogenic aromatic amine pollutants in industrial wastewater, soil, printing ink and food contact materials

5. Fine Chemical Synthetic Building Block

Synthesis of sulfur/nitrogen heterocyclic fine chemicals, chelating agents and industrial biocide intermediates

5. Export Packaging & Storage Transportation

Standard Packing Options

Industrial bulk: 25kg fiber drum with double PE light-proof anti-moisture inner liner, fully airtight sealed cap
Ton jumbo bag: 1000kg waterproof light-shield woven bag for factory continuous feeding
Lab small packing: 100g / 500g amber sealed plastic bottle

All pallets wrapped with waterproof light-shield stretch film for long ocean transit

Storage & Transit Mandatory Rules

Warehouse: Cool, dark, ventilated toxic chemical warehouse, storage temperature ≤25°C, strictly avoid direct sunlight to prevent oxidative discoloration
Containers fully airtight sealed to prevent dust leakage and moisture absorption
Strict segregate from oxidants, bleaching agents, food raw materials, edible goods and drinking water supplies
Transport as IMDG UN 3077 Class 9 Marine Pollutant PG III; strictly separate from food cargo during ocean shipment; prevent rain soaking and package rupture

6. GHS Full Hazard Statements & Mandatory PPE

Hazard Statements

H312: Harmful in contact with skin
H317: May cause allergic skin reaction
H319: Causes serious eye irritation
H332: Harmful if inhaled (crystal dust irritates respiratory tract)
H351: Suspected of causing cancer
H400: Very toxic to aquatic life
H410: Very toxic to aquatic life with long lasting ecological hazards

Mandatory PPE for All Operations

Dust half-face respirator with high-efficiency particulate filter cartridge
Double protection: fully sealed chemical safety goggles + full face shield
Chemical resistant thick nitrile rubber gloves
Dust-proof impermeable full-body protective overalls + anti-dust rubber boots
Local negative-pressure exhaust ventilation system for weighing, sampling and feeding work

Spill & First Aid Emergency Treatment

Spill disposal: Evacuate irrelevant personnel, cover crystalline solid with dry inert sand to suppress dust; collect all contaminated absorbent and residual solid into airtight hazardous waste steel drum for professional incineration; prohibit direct discharge to sewer or water body
Skin contact: Immediately strip all contaminated clothing, flush skin with massive soap running water continuously ≥30 minutes and rush to hospital for toxic dermatitis treatment
Eye contact: Irrigate eyes with steady clean running water non-stop for minimum 30 minutes, emergency ophthalmic treatment mandatory
Inhalation: Move victim to fresh air instantly; supply oxygen if dizziness, cough or dyspnea occurs
Ingestion: Do NOT induce vomiting, drink large volume clean water/milk to dilute toxin and transport to hospital with SDS document

7. Foreign Trade Selling Advantages

Two complete grades: industrial pigment synthesis grade and high-purity lab standard grade, strictly controlled low free amine impurities for stable diazotization yield
Uniform crystal particle size, consistent color fastness performance, widely recognized by global printing ink and plastic pigment manufacturers
Light-proof double-layer anti-moisture sealed packaging, no discoloration during long-distance ocean shipping
Complete full set Class 9 marine pollutant export documents (COA, English SDS, UN packaging certificate, IMDG maritime declaration, certificate of origin, heavy metal compliance test report)
Flexible supply: Small trial drums/bags, jumbo bulk bags and full container FCL shipments acceptable

8. Full Set Export Supporting Documents

Batch Certificate of Analysis (COA)
English Version SDS Safety Data Sheet
Dangerous Goods Packaging Qualification Certificate
IMDG Maritime Dangerous Goods Declaration File
Certificate of Origin
Heavy metal & free amine impurity compliance test report

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Certificates

Basic Info

Product Name:

3,3′-Dichlorobenzidine

Other Name:

[1,1′-Biphenyl]-4,4′-diamine,3,3′-dichloro-;Benzidine,3,3′-dichloro-;3,3′-Dichloro[1,1′-biphenyl]-4,4′-diamine;C.I. 23060;o,o′-Dichlorobenzidine;3,3′-Dichlorobenzidine;3,3′-Dichlorobiphenyl-4,4′-diamine;3,3′-Dichloro-4,4′-diaminobiphenyl;Curithane C 126;4,4′-Diamino-3,3′-dichlorodiphenyl;4,4′-Diamino-3,3′-dichlorobiphenyl;4′-Amino-3,3′-dichloro[1,1′-biphenyl]-4-ylamine;3,3′-Dichloro-p,p′-bianiline;NSC 154073;4,4′-Bis(2-chloroaniline)

CAS No.:

91-94-1

Molecular Formula:

C12H10Cl2N2

InChIKeys:

InChIKey=HUWXDEQWWKGHRV-UHFFFAOYSA-N

Molecular Weight:

253.13

Exact Mass:

253.13

EC Number:

202-109-0

HScode:

2921590032

Categories:

Amides

Characteristics

PSA:

XLogP3:

3.51

Appearance:

3,3'-dichlorobenzidine is a gray to purple crystalline powder. Insoluble in water. Very toxic. Used in the dye industry, curing agent for isocyanate terminated resins.

Density:

1.4±0.1 g/cm3

Melting Point:

132-133 °C

Boiling Point:

402 °C

Flash Point:

10 °C

Refractive Index:

1.679

Water Solubility:

3.114mg/L(25 ºC)

Storage Conditions:

2-8°C

Vapor Pressure:

4.2 x 10 -7 at 25 °C (estimated, Howard, 1989)

Toxicity:

Oral-rat LD50: 3820 mg/kgOral-Mouse LD50: 2464 mg/kg

Flammability characteristics:

Flammable; emit toxic hydrogen chloride, nitrogen oxide gas when heated

PH:

Weak base

See More 3,3′-Dichlorobenzidine Properties 

Hazard Identification

Classification of the substance or mixture

Acute toxicity - Category 4, Dermal

Skin sensitization, Category 1

Carcinogenicity, Category 1B

Hazardous to the aquatic environment, short-term (Acute) - Category Acute 1

Hazardous to the aquatic environment, long-term (Chronic) - Category Chronic 1

GHS label elements, including precautionary statements

Precautionary statement(s)
Pictogram(s)
Signal word	Danger
Hazard statement(s)	H312 Harmful in contact with skin H317 May cause an allergic skin reaction H350 May cause cancer H410 Very toxic to aquatic life with long lasting effects
Prevention	P280 Wear protective gloves/protective clothing/eye protection/face protection/hearing protection/... P261 Avoid breathing dust/fume/gas/mist/vapours/spray. P272 Contaminated work clothing should not be allowed out of the workplace. P203 Obtain, read and follow all safety instructions before use. P273 Avoid release to the environment.
Response	P302+P352 IF ON SKIN: Wash with plenty of water/... P317 Get medical help. P321 Specific treatment (see ... on this label). P362+P364 Take off contaminated clothing and wash it before reuse. P333+P317 If skin irritation or rash occurs: Get medical help. P318 IF exposed or concerned, get medical advice. P391 Collect spillage.
Storage	P405 Store locked up.
Disposal	P501 Dispose of contents/container to an appropriate treatment and disposal facility in accordance with applicable laws and regulations, and product characteristics at time of disposal.

Other hazards which do not result in classification

no data available

Handling and Storage

Precautions for safe handling

NO open flames. Handling in a well ventilated place. Wear suitable protective clothing. Avoid contact with skin and eyes. Avoid formation of dust and aerosols. Use non-sparking tools. Prevent fire caused by electrostatic discharge steam.

Conditions for safe storage, including any incompatibilities

Provision to contain effluent from fire extinguishing. Separated from food and feedstuffs. Well closed. Store only in original container. Store in an area without drain or sewer access.Stable under recommended storage conditions.

See More 3,3′-Dichlorobenzidine Safety Data Sheet 

Seller Information

Business Type:
Trader

Main Products:
Acrylonitrile,Sodium biselenite methylamine solution,Methylamine [anhydrous],Zinc dust,Hydrogen peroxide solution [content >8%],Triisopropyl borate

Location:
Shop No.15, 1st Floor, Building 12, Hengda Huafu, Sucheng District, Suqian City

Payment Terms:
TT against B/L draft before shipment,100% TT in advance

Average lead Time:
30

Total Annual Revenue:
Less than $1 million

Total Employees:
5-10

Year of Establishment:
2022
Company Overview

Suqian Hengliyuan Import and Export Corporation, Ltd. is a leading enterprise specializing in the international trade of chemical products. Established in Suqian, Jiangsu Province, China, our company has built a strong reputation for excellence and reliability in the chemical industry.

Our Mission

Our mission is to facilitate global trade by providing high-quality chemical products and exceptional service to our clients. We aim to be a bridge between manufacturers and end-users, ensuring the safe and efficient transfer of chemicals across borders.

Products and Services

We offer a comprehensive range of chemical products, including but not limited to:

Industrial Chemicals: Raw materials for various industries such as pharmaceuticals, agriculture, and manufacturing.

Specialty Chemicals: High-performance chemicals used in specific applications, including water treatment, coatings, and adhesives.

Bulk Chemicals: Large-volume chemicals for industrial processes and manufacturing needs.

Quality Assurance

At Suqian Hengliyuan Import and Export Corporation, Ltd., quality is our top priority. We adhere to stringent quality control measures and international standards to ensure that our products meet the highest levels of purity and performance. Our dedicated quality assurance team conducts rigorous inspections and testing to guarantee the integrity and safety of all our chemical products.

Global Network

Leveraging our extensive network of suppliers and partners, we are able to source and deliver a wide array of chemical products to clients worldwide. Our strategic partnerships and logistical expertise enable us to offer competitive pricing, timely delivery, and customized solutions to meet the diverse needs of our clients.

Commitment to Sustainability

We are committed to sustainable business practices and environmental stewardship. Our operations are designed to minimize environmental impact, and we continuously seek ways to improve our processes and reduce our carbon footprint. We work closely with our suppliers and customers to promote the responsible use and disposal of chemicals.

Customer Focus

Our clients are at the heart of everything we do. We pride ourselves on providing personalized service and building long-term relationships based on trust and mutual benefit. Our experienced team of professionals is dedicated to understanding our clients' needs and delivering solutions that exceed their expectations.

Inquiry History

1 Inquiries

Country	Product	Purchase Quantity	Date Posted
India	3,3'-Dichlorobenzidine	3.00 MT	Nov 17, 2025

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