Safety Data Sheets / Mayer's Haematoxylin

Safety Data Sheet

Mayer's Haematoxylin

Version 1Last reviewed 27 February 2026Catalogue: 26173-03

1. Identification

Product Identifiers

Product Name: Mayer's Haematoxylin
Other Names: -
Product Number(s): 26173-03
CAS Number: -

Recommended use of the chemical and restriction on use

Laboratory use

Company Details

ProSciTech Pty Ltd
11 Carlton Street
KIRWAN QLD 4817
Australia
(07) 4773 9444
pst@proscitech.com
proscitech.com.au

Emergency Contact Details

ProSciTech Pty Ltd
11 Carlton Street
KIRWAN QLD 4817
Australia
(07) 4773 9444
pst@proscitech.com
proscitech.com.au

2. Hazards Identification

Classification of the substance or mixture

GHS08 Health hazard
Carcinogenicity 1B H350 May cause cancer.
GHS07
Acute toxicity - oral 4 H302 Harmful if swallowed.
Acute toxicity - dermal 4 H312 Harmful in contact with skin.
Acute toxicity - inhalation 4 H332 Harmful if inhaled.
Skin irritation 2 H315 Causes skin irritation.

Label Elements

Signal Words: None
Hazard Statement(s): H350 May cause cancer.
Precautionary Statement(s): P201 Obtain special instructions before use.
P202 Do not handle until all safety precautions have been read and understood.
P280 Wear protective gloves/protective clothing/eye protection/face protection.
P308±P313 IF exposed or concerned: Get medical advice/attention.
P405 Store locked up.
P501 Dispose of contents/container in accordance with local/regional/national/international regulations.

Primary route(s) of entry

Eye, skin and inhalation

Human Health

Inhalation: Harmful if inhaled.
Ingestion: Harmful if swallowed.
Eyes: Causes serious eye irritation.
Skin: Causes skin irritation.

Environment

Do not allow to enter sewers/ surface or ground water.

3. Composition / Information on Ingredients

Name	CAS No.	Content (w/w)	Classification
chloral hydrate	302-17-0	>2.5-≤10%	H301 - Acute toxicity, Oral (Category 3); H315 - Skin corrosion/irritation (Category 2); H319 - Serious eye damage/eye irritation (Category 2A)

Haematoxylin	517-28-2	≤0.1%	H319 - Serious eye damage/eye irritation (Category 2A)

4. First Aid Measures

Ingestion: If symptoms persist consult doctor.
Inhalation: Supply fresh air. If required, provide artificial respiration. Keep patient warm. Consult doctor if symptoms persist.
In case of unconsciousness place patient stably in side position for transportation.
Skin Contact: Immediately wash with water and soap and rinse thoroughly.
Eye Contact: Rinse opened eye for several minutes under running water.
Other Information: No further relevant information available.

5. Firefighting Measures

Suitable extinguishing equipment

Fire: Use fire fighting measures that suit the environment.
HAZCHEM: No further relevant information available.

Special protective equipment and precautions for fire fighters

Mouth respiratory protective device.

6. Accidental Release Measures

Personal precautions, protective equipment and emergency procedures: Not required
Environmental precautions: Dilute with plenty of water.
Do not allow to enter sewers/ surface or ground water
Methods and materials for containment and clean up: Absorb with liquid-binding material (sand, diatomite, acid binders, universal binders, sawdust).
Dispose contaminated material as waste according to item 13.
Ensure adequate ventilation

7. Handling and Storage

Precautions for safe handling: Ensure good ventilation/exhaustion at the workplace.
Prevent formation of aerosols
Conditions for safe storage: Keep receptacle tightly sealed.

8. Exposure Controls / Personal Protection

Exposure Standards

Engineering controls: Keep away from foodstuffs, beverages and feed.
Immediately remove all soiled and contaminated clothing.
Wash hands before breaks and at the end of work.
Avoid contact with the skin.
Avoid contact with the eyes and skin.

Personal protective equipment

Eye and face protection: Goggles recommended during refilling.
Skin protection: Gloves and Goggles
Body protection: Protective gloves
The glove material has to be impermeable and resistant to the product/ the substance/ the preparation.
Due to missing tests no recommendation to the glove material can be given for the product/ the preparation/ the chemical mixture.
Selection of the glove material on consideration of the penetration times, rates of diffusion and the degradation
Respiratory protection: In case of brief exposure or low pollution use respiratory filter device. In case of intensive or longer exposure use respiratory protective device that is independent of circulating air.

9. Physical and Chemical Properties

General information

Appearance: Liquid
Odour: Charactisitics
pH: at 20 °C (68 °F): 2.4
Vapour Pressure: at 20 °C (68 °F): 23 hPa (17.3 mm Hg)
Density: Not determined
Boiling Point: 96 °C (204.8 °F)
Melting Point: Not determined
Solubility: Fully miscible
Specific Gravity of Density: Not determined
Flash Point: Not determined
Flammable (Explosive) Limits: Not determined
Ignition Temperature: Not determined
Formula: Solvent content:
Water: 89.7 %
VOC content: 0.00 %
0.0 g/l / 0.00 lb/gal
Solids content: 5.1 %

10. Stability and Reactivity

Reactivity: No further relevant information available
Chemical stability: Stable under normal working conditions
Possibility of hazardous reactions: No dangerous reactions known
Conditions to avoid: No further relevant information available
Incompatible materials: No further relevant information available

11. Toxicological Information

Acute effects: LD/LC50 values that are relevant for classification:
302-17-0 chloral hydrate
Oral LD50 479 mg/kg (rat)
Dermal LD50 3,030 mg/kg (rat)
Eye contact: Irritating effect
Skin contact: Irritant to skin and mucous membranes.
Ingestion: No sensitizing effects are known.
Inhalation: No sensitizing effects are known.
Toxicity and irritation: The product shows the following dangers according to internally approved calculation methods for preparations:
Harmful
Irritant

12. Ecological Information

Ecotoxicity: No further relevant information available.
Persistence and degradability: No further relevant information available.
Bioaccumulative potential: No further relevant information available.
Other adverse effects: No further relevant information available.

13. Disposal Considerations

General information

Water hazard class 2 (Self-assessment): hazardous for water
Danger to drinking water if even small quantities leak into the ground.
Must not be disposed of together with household garbage. Do not allow product to reach sewage system

14. Transport Information

ADG label required

HAZCHEM: No further relevant information available.
UN Number: Void
Proper shipping name: Void
Transport hazard class: Void
Packing group: Void
Environmental hazard: Void
Special precautions for users: Void
Additional information: Void

15. Regulatory Information

Poisons Schedule Number: No further relevant information available.
Other Information: TSCA (Toxic Substances Control Act):
7732-18-5 Deionised Water, Reagent Grade A.C.S. ACTIVE
302-17-0 chloral hydrate ACTIVE
77-92-9 citric acid ACTIVE
517-28-2 haematoxylin ACTIVE
7681-55-2 Sodium iodate ACTIVE
Hazardous Air Pollutants
None of the ingredients is listed.
Proposition 65
Chemicals known to cause cancer:
302-17-0 chloral hydrate
Chemicals known to cause reproductive toxicity for females:
None of the ingredients is listed.
Chemicals known to cause reproductive toxicity for males:
None of the ingredients is listed.
Chemicals known to cause developmental toxicity:
None of the ingredients is listed.
Carcinogenic categories
EPA (Environmental Protection Agency)
302-17-0 chloral hydrate C, CBD
TLV (Threshold Limit Value)
None of the ingredients is listed.
NIOSH-Ca (National Institute for Occupational Safety and Health)
None of the ingredients is listed.

16. Other Information

SDS preparation date: 27 February 2026
Comments: This information is based on our present knowledge. However, this shall not constitute a guarantee for any specific product features and shall not establish a legally valid contractual relationship.