CompoundList
Sign in
Dye intermediates

Benzidine safety data

GHS hazards, precautions, first aid, handling and transport for Benzidine. A classification summary, not a safety data sheet.
CAS 92-87-5Formula C12H12N2

GHS classification summary, not a safety data sheet (SDS). Classifications can differ by supplier, grade and concentration. Always check the supplier's SDS.

GHS classification

Pictograms, signal word and hazard classes of the GHS classification

GHS07: Harmful or irritant
Harmful or irritant
GHS08: Serious health hazard
Serious health hazard
GHS09: Hazardous to the environment
Hazardous to the environment
Signal word
Danger

Hazard classes and categories

  • Acute Tox. 4 (oral)
  • Carc. 1A/1B
  • Aquatic Acute 1
  • Aquatic Chronic 1

Hazard statements

H codes grouped by type. Percentages show the share of classification notifications that report the statement

Health hazards

  • H302Harmful if swallowed.
  • H350May cause cancer.

Environmental hazards

  • H400Very toxic to aquatic life.
  • H410Very toxic to aquatic life with long lasting effects.

Precautionary statements

P codes for prevention, response, storage and disposal

Prevention

  • P203Obtain, read and follow all safety instructions before use.
  • P264Wash skin thoroughly after handling.
  • P270Do not eat, drink or smoke when using this product.
  • P273Avoid release to the environment.
  • P280Wear protective gloves, protective clothing, eye protection and face protection.

Response

  • P301 + P317If swallowed: Get medical help.
  • P318If exposed or concerned, get medical advice.
  • P330Rinse mouth.
  • P391Collect spillage.

Storage

  • P405Store locked up.

Disposal

  • P501Dispose of contents and container in accordance with local regulations.

First aid

General first aid measures. Get medical advice if you feel unwell

If inhaled
IMMEDIATELY leave the contaminated area, take deep breaths of fresh air. IMMEDIATELY call a physician and be prepared to transport the victim to a hospital even if no symptoms (such as wheezing, coughing, shortness of breath, or burning in the mouth, throat, or chest) develop. Provide proper respiratory protection to rescuers entering an unknown atmosphere. Whenever possible, Self-Contained Breathing Apparatus (SCBA) should be used, if not available, use a level of protection greater than or equal to that advised under Protective Clothing.
Skin contact
IMMEDIATELY flood affected skin with water while removing and isolating all contaminated clothing. Gently wash all affected skin areas thoroughly with soap and water. IMMEDIATELY call a hospital or poison control center even if no symptoms (such as redness or irritation) develop. IMMEDIATELY transport the victim to a hospital for treatment after washing the affected areas.
Eye contact
First check the victim for contact lenses and remove if present. Flush victim's eyes with water or normal saline solution for 20 to 30 minutes while simultaneously calling a hospital or poison control center. Do not put any ointments, oils, or medication in the victim's eyes without specific instructions from a physician. IMMEDIATELY transport the victim after flushing eyes to a hospital even if no symptoms (such as redness or irritation) develop.
If swallowed
DO NOT INDUCE VOMITING. If the victim is conscious and not convulsing, give 1 or 2 glasses of water to dilute the chemical and IMMEDIATELY call a hospital or poison control center. Be prepared to transport the victim to a hospital if advised by a physician. If the victim is convulsing or unconscious, do not give anything by mouth, ensure that the victim's airway is open and lay the victim on his/her side with the head lower than the body. DO NOT INDUCE VOMITING. IMMEDIATELY transport the victim to a hospital. OTHER: Since this chemical is a known or suspected carcinogen you should contact a physician for advice regarding the possible long term health effects and potential recommendation for…

Handling, storage and disposal

Summaries only, follow the supplier SDS for your grade

Safe handling

Fire: NO open flames.

General: See EFFECTS OF LONG-TERM OR REPEATED EXPOSURE. AVOID ALL CONTACT!

Inhalation: Use closed system and ventilation.

Skin: Protective gloves. Protective clothing.

Eyes: Wear face shield or eye protection in combination with breathing protection if powder.

Ingestion: Do not eat, drink, or smoke during work. Wash hands before eating.

Storage

Provision to contain effluent from fire extinguishing. Separated from strong oxidants and food and feedstuffs. Keep in the dark. Well closed. Store in an area without drain or sewer access.

Disposal

Generators of waste (equal to or greater than 100 kg/mo) containing this contaminant, EPA hazardous waste number U021, must conform with USEPA regulations in storage, transportation, treatment and disposal of waste. A potential candidate for rotary kiln incineration at a temperature range of 820 to 1,600 °C and residence times of seconds for liquids and gases, and hours for solids. A potential candidate for fluidized bed incineration at a temperature range of 450 to 980 °C and residence times of seconds for liquids and gases, and longer for solids.

Exposure limits and toxicity

Occupational exposure limits and toxicity data

OSHA PEL
[1910.1010]

Long-term exposure: This substance is carcinogenic to humans.

Transport information

UN dangerous goods classification for road, sea and air

UN number
UN 1885
Transport hazard class
6.1
Packing group
II

Shipping rules depend on mode, quantity and packaging. Confirm the classification with the supplier SDS and your freight forwarder.

Supplier safety data sheets

SDS documents uploaded by suppliers who list this chemical

No supplier has uploaded an SDS for Benzidine yet. Suppliers usually send one with their quote. Request quotes

Safety questions

Quick answers about handling Benzidine safely

Is Benzidine hazardous?

Benzidine carries the GHS signal word "Danger". Main hazards: harmful if swallowed, may cause cancer, very toxic to aquatic life. This summary is not an SDS, always read the supplier safety data sheet.

Which GHS pictograms apply to Benzidine?

The GHS classification of Benzidine shows 3 pictograms: GHS07 (harmful or irritant), GHS08 (serious health hazard), GHS09 (hazardous to the environment).

What is the UN number of Benzidine?

Benzidine is transported under UN 1885, hazard class 6.1, packing group II. Check the supplier SDS and the current ADR, IMDG or IATA rules before shipping.

How should Benzidine be stored?

Provision to contain effluent from fire extinguishing. Separated from strong oxidants and food and feedstuffs. Keep in the dark. Well closed. Store in an area without drain or sewer access.

Where can I get the SDS for Benzidine?

Ask the supplier for the safety data sheet of the exact grade you buy. Suppliers on CompoundList can attach their SDS to listings and send it with a quote. This page is a GHS classification summary, not an SDS.

GHS classification summary, not an SDS. Always check the supplier's SDS. Last updated 7 Oct 2026. Report an error

38 suppliers
Free quotes, contact stays private
Get quotes