o-Phenylenediamine(OPD)

CAS No.: 95-54-5

Catalogue ID: GTC-488

o-Phenylenediamine(OPD), CAS 95-54-5. Source-derived identification, physical data and applications are provided for catalogue reference; request the current specification, COA and SDS for the required grade.

Catalogue aliases / related identifiers

o-Phenylenediamine; 1,2-Phenylenediamine; 1,2-Diaminobenzene; o-Diaminobenzene; ortho-Phenylenediamine; 1,2-Benzenediamine; Phenylene-1,2-diamine; OPD

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Supplied catalogue source: GTC-488 · Page 33

Reference data — confirm before ordering or use

The information below is a structured migration from the supplied catalogue snapshot. It is not a current product specification, COA or SDS. Confirm the actual supplier, grade, batch documents, classification, packing and destination requirements for your enquiry.

Basic Information

CAS No.	95-54-5
EC No.	202-430-6
Linear Formula	C₆H₄(NH₂)₂
Molecular Weight	108.14 g/mol
Appearance	White to brown crystals
Melting Point	102-104 °C (lit.)
Boiling point	256-258 °C (lit.)
Density	1.03 g/cm³ (lit.)
RIDADR	UN 1673 Class 6.1 Packing Group III
Chemical Structure

Key Applications

Hair dye developer: Essential in oxidative coloring for permanent hair shades.
Azo dye intermediate: Used for synthesizing dyes in textiles and inks.
Photographic chemical: Applied in black-and-white film developers.
Polymer curing agent: Serves as component in epoxy and polyurethane resins.
Rubber accelerator: Employed to enhance vulcanization processes.

Consistent quality suitable for demanding industrial processes: Backed by thorough testing methods.
Flexible supply arrangements for global customers: Adapts to diverse order sizes and timelines.
Compliance with international safety and transportation standards: Delivers necessary certifications promptly.
Dedicated support for international chemical sourcing: Provides expert guidance on applications.

Hazards Classification

GHS Classification: Acute toxicity (oral) Category 3 (GHS06); Acute toxicity (dermal) Category 3 (GHS06); Acute toxicity (inhalation) Category 3 (GHS06); Skin sensitization Category 1 (GHS07); Germ cell mutagenicity Category 2 (GHS08); Hazardous to the aquatic environment, acute Category 1 (GHS09); Hazardous to the aquatic environment, chronic Category 1 (GHS09).

Hazard Statements: H301 + H311 + H331 Toxic if swallowed, in contact with skin or if inhaled; H317 May cause an allergic skin reaction; H341 Suspected of causing genetic defects; H410 Very toxic to aquatic life with long lasting effects.

UN Number: 1673

Hazard Class: 6.1 (Toxic substances)

Packing Group: III

GHS09 Environment — Environmental Hazard

Toxic solid with mutagenic potential. Store in tightly closed containers in a cool, dry, ventilated area protected from light. Handle using full PPE to avoid skin contact and inhalation.

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01Current specification
02Batch or sample COA
03Product- and supplier-specific SDS
04Packing and shipping review

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o-Phenylenediamine(OPD)