ShengHe Chemical Benzidine

Benzidine

High-quality chemical supplied by Jinan Shenghe Chemical Co., Ltd. Competitive pricing, reliable delivery, and full technical support for B2B buyers worldwide.

CAS: 92-87-5 ⚠ Hazardous Goods
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Specifications

Molecular FormulaC12H12N2
Molecular Weight184.2371
Melting Point128℃
Boiling Point358.7°C at 760 mmHg
Flash Point203.5°C
Water SolubilitySparingly soluble. <0.1 g/100 mL at 22℃
Vapor Pressure2.5E-05mmHg at 25°C

Detailed Chemical Properties & Synonyms

Benzidine structure
Chinese Synonyms 对二氨基联苯4,4'-二氨基联苯4,4'-联苯二胺
Synonyms C.I. 37225C.I. Azoic Diazo Component 1124,4'-Diaminobiphenyl4-(4-aminophenyl)benzenaminebiphenyl-4,4'-diamineBenzidine Bianiline

Mô tả

Benzidine · CAS 92-87-5 · C12H12N2. UNII 2X02101HVF. Điểm sôi: 752 °F at 740 mmHg (NTP, 1992); Điểm sôi: 401 °C; Điểm sôi: 401 °C @760 [mm Hg].

Nhận dạng

Số đăng ký CAS 92-87-5
PubChem CID 7111
Công thức phân tử C12H12N2
Tên IUPAC 4-(4-aminophenyl)aniline
UNII (FDA) 2X02101HVF

Các descriptor tính toán

Khối lượng phân tử 184.24
XLogP3 1.3
Số nhóm cho liên kết hydro 2
Số nhóm nhận liên kết hydro 2
Số liên kết quay được 1
Khối lượng chính xác 184.100048391
Khối lượng đơn đồng vị 184.100048391
Diện tích bề mặt phân cực tôpô 52
Số nguyên tử nặng 14
Điện tích hình thức 0

Tính chất vật lý & hóa học

Điểm sôi 752 °F at 740 mmHg (NTP, 1992)
Điểm sôi 401 °C
Điểm sôi 401 °C @760 [mm Hg]
Điểm sôi 752 °F
Điểm nóng chảy 262 °F (NTP, 1992)
Điểm nóng chảy 120 °C
Điểm nóng chảy 127 °C
Điểm nóng chảy 239 °F
Độ tan In water, 322 mg/l @ 25 °C
Độ tan 0.322 mg/mL at 25 °C

Mô tả vật lý & lưu ý khi xử lý

  • Benzidine appears as a grayish-yellow to grayish-red, crystalline solid. Toxic by ingestion, inhalation, and skin absorption. Combustion produces toxic oxides of nitrogen. Used to make other chemicals and in chemical and biological analysis.
  • Grayish-yellow, reddish-gray, or white crystalline powder. Note: Darkens on exposure to air and light; [NIOSH]
  • Solid
  • COLOURLESS OR REDDISH CRYSTALLINE POWDER. TURNS DARK ON EXPOSURE TO AIR AND LIGHT.
  • Grayish-yellow, reddish-gray, or white crystalline powder. [Note: Darkens on exposure to air and light.]
  • White or slightly-reddish, crystalline powder

Phân loại nguy hiểm GHS

Các cảnh báo nguy hiểm được báo cáo H302, H350, H400, H410, H341, H372, H373, H401

H302: Có hại nếu nuốt phải [Cảnh báo Độc tính cấp, đường miệng]

H350: May cause cancer [Nguy hiểm Carcinogenicity]

Công dụng được ghi nhận

  • The predominant use for benzidine is in the production of dyes, especially azo dyes in the leather, textile, and paper industries.
  • Benzidine is no longer produced for commercial sale in the United States. In 1973, OSHA regulations effectively banned United States production of benzidine. Any benzidine production must be for captive consumption (in-house use), and it must be maintained in closed systems under stringent workplace controls. . . . The predominant use of benzidine is in the production of dyes, especially azo dyes in the leather, textile, and paper industries. The Color Index lists over 300 colors of benzidine-derived dyes, some 18
  • Not produced for commercial sale in the United States since 1974; however, benzidine can be imported and small amounts are still used to make benzidine-based dyes; [ACGIH] See 29CFR1910.1003;
  • Pulp and Paper Processing [Category: Industry]
  • Leather Tanning and Processing [Category: Industry]
  • Textiles (Printing, Dyeing, or Finishing) [Category: Industry]

Tên đồng nghĩa

BENZIDINE; 92-87-5; [1,1'-Biphenyl]-4,4'-diamine; 4,4'-Diaminobiphenyl; p-Diaminodiphenyl; 4,4'-Bianiline; 4,4'-Biphenyldiamine; biphenyl-4,4'-diamine; p,p'-Diaminobiphenyl; 4,4'-Diaminodiphenyl; 4-(4-aminophenyl)aniline; p,p-Bianiline; 4,4'-Biphenylenediamine; 4,4'-Diphenylenediamine; Fast Corinth Base B; p,p'-Dianiline

Câu hỏi thường gặp

Số CAS và công thức phân tử của Benzidine là gì?

CAS 92-87-5; công thức phân tử C12H12N2; khối lượng phân tử — g/mol.

Benzidine còn được biết đến với những tên gọi nào khác?

BENZIDINE, 92-87-5, [1,1'-Biphenyl]-4,4'-diamine, 4,4'-Diaminobiphenyl, p-Diaminodiphenyl, 4,4'-Bianiline.

Benzidine có được phân loại là nguy hiểm không?

Cảnh báo nguy hiểm được báo cáo: H302, H350, H400, H410, H341.

Các tính chất vật lý chính của Benzidine là gì?

Điểm sôi: 752 °F at 740 mmHg (NTP, 1992); Điểm sôi: 401 °C; Điểm sôi: 401 °C @760 [mm Hg]; Điểm sôi: 752 °F.

Thông tin trên trang này được lấy từ PubChem (Thư viện Y học Quốc gia Hoa Kỳ) và Wikidata. Dữ liệu theo từng cấp độ — hàm lượng, độ ẩm, kích thước hạt, bao bì, hạn dùng — được cấp theo lô trên COA và không công bố tại đây.

Gửi email cho chúng tôi để nhận giá, COA và thông số kỹ thuật

Packaging & Shipping

  • Standard: 25 kg fiber drum / 200 kg steel drum with double PE liner
  • Small pack: 1 kg / 5 kg aluminum foil bag for lab & sample
  • Custom: packaging size and labeling per customer requirement
  • Lead time: in-stock items ship within 3-5 business days
  • Documents: COA, MSDS / SDS, TDS provided with every shipment
  • Global: air, sea (FCL / LCL) and express to 80+ countries

Storage & Handling

Store in a cool, dry, well-ventilated place away from heat, direct sunlight and incompatible materials. Keep container tightly closed. Use appropriate personal protective equipment and refer to the SDS for full safety guidance before handling.

Frequently Asked Questions

Can you provide a Certificate of Analysis (COA) and sample?

Yes. A batch-specific COA and free or charged sample are available on request before bulk ordering.

Do you support custom synthesis or specific specifications?

Yes. We offer custom grade, particle size and purity adjustment based on your application and order volume.

What are your minimum order quantities (MOQ)?

MOQ depends on the product; small quantities are supported for R&D and trial runs.

How do you ensure consistent quality?

Every batch is tested in-house and retains full traceability from raw material to finished goods.

Why Choose Jinan Shenghe Chemical

13+
Years of Export
Serving global B2B buyers across the chemical industry since 2013.
2000+
Products in Catalog
Broad coverage of fine chemicals, additives and intermediates.
80+
Countries Served
Reliable long-term supply with worldwide logistics.
100%
Batch Tested
COA and traceability for every shipment.

Request a Quote

Looking for pricing, availability or technical data for Benzidine?

Email us at sales@shenghechemical.com or use the button above. Our team typically responds within 1 business day.

About Jinan Shenghe Chemical Co., Ltd.

Jinan Shenghe Chemical Co., Ltd.

We are a professional chemical supplier based in Jinan, China. Since 2013, we have been connecting manufacturers and global B2B buyers with reliable sourcing, quality-controlled products and efficient logistics.

Our business covers food & feed additives, fine chemicals, pharmaceutical intermediates, eco-materials, coatings and specialty chemicals — all non-hazardous and compliant with our licensed scope.

Company Name
Jinan Shenghe Chemical Co., Ltd.
Business Type
Manufacturer Representative / Trading Company
Location
Jinan, Shandong, China
Main Products
Fine Chemicals, Additives, Intermediates
Export Markets
Asia, Europe, North & South America, Middle East
Documents Supplied
COA, MSDS / SDS, TDS
Email
sales@shenghechemical.com
Phone / WhatsApp
+86-18553102138
Website
www.shenghechemical.com

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