SAFETY DATA SHEET

Methyl Green, C.I. 42590

Version 1Last reviewed 24 February 2026Catalogue: C125

1. Identification

Product Identifiers

Product Name: Methyl Green, C.I. 42590
Other Names: Ethyl green
Product Number(s): C125
CAS Number: 14855-76-6

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

Skin irritation (Category 2) Eye irritation (Category 2A)
Specific target organ toxicity - single exposure (Category 3)

Label Elements

Signal Words: Warning
Hazard Statement(s): H319: Causes serious eye irritation.
H315: Causes skin irritation.
H335: May cause respiratory irritation.
Precautionary Statement(s): Dust/spray/ fume/gas/ mist/ vapours.
P264: wash skin thoroughly after handling.
P271: Use only outdoors or in well-ventilated area.
P405: Store locked up. P280: Wear protective gloves/eye & face protection.
P330: Rinse mouth P302 ± P352: If on skin gently wash with plenty of soap & water.
P304 ± P340 ± P312: If inhaled: remove to fresh air and keep at rest in a position comfortable for breathing. Call Poison Center or doctor/physician if you feel unwell.
P305 ± P351 ± P338: If in Eyes: Rinse cautiously with water for several minutes. Remove contact lenses, if present & easy to do so. Continue rinsing .
P308 ±P313: If exposed or concerned: contact doctor/physician.
P322: Specific measures (see supplemental first aid instructions).
P332 ± P313: If skin irritation occurs: consult physician.
P337 ± P313: If eye irritation occurs: consult physician.
P362: Take off contaminated clothing and wash before reuse.
P403 ± P233: Store in a well ventilated place. Keep container tightly closed.
P501: Dispose of contents/container to an approved waste disposal plant.
P261: Avoid breathing dust .

Primary route(s) of entry

Not available.

Human Health

Inhalation: Harmful by inhalation.
Ingestion: Harmful if swallowed.
Eyes: Risk of serious damage to eyes.
Skin: Harmful in contact with skin.

Environment

No further relevant information available.

3. Composition / Information on Ingredients

Name	CAS No.	Content (w/w)	Classification
Methyl Green, zinc chloride	14855-76-6	~90%	-

4. First Aid Measures

Ingestion: Do not induce vomiting without medical advice. Rinse with water. Consult physician
Inhalation: Move to fresh air. Consult a physician.
Skin Contact: Rinse with plenty of soap & water and seek medical advice.
Eye Contact: Rinse immediately with plenty of water and seek medical advice.
Other Information: Treat symptomatically and supportively.

5. Firefighting Measures

Suitable extinguishing equipment

Fire: Use dry chemical, CO₂, water spray or alcohol resistant foam.
HAZCHEM: Not available.

Special protective equipment and precautions for fire fighters

Carbon, zinc, & nitrogen oxides, hydrogen chloride gas, hydrogen bromide gas. As in any fire, wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion. Runoff from fire control or dilution water may cause pollution.

6. Accidental Release Measures

Personal precautions, protective equipment and emergency procedures: Use proper personal protective equipment as indicated in Section 8.
Environmental precautions: Not available.
Methods and materials for containment and clean up: Clean up spills immediately, observing precautions in the Protective Equipment Section. Sweep up or absorb material, then place into a suitable clean, dry, closed container for disposal. Avoid generating dusty conditions. Provide ventilation.

7. Handling and Storage

Precautions for safe handling: Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Use with adequate ventilation. Minimize dust generation and accumulation. Avoid contact with eyes, skin, and clothing.
Conditions for safe storage: Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances.

8. Exposure Controls / Personal Protection

Exposure Standards

Engineering controls: Facilities storing or utilising this material should be equipped with an eyewash facility and a safety shower. Use adequate ventilation to keep airborne concentrations low.

Personal protective equipment

Eye and face protection: Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHA's eye and face protection regulations in 29 CFR 1910.133 or European Standard En166.
Skin protection: Wear appropriate protective gloves to prevent skin exposure. 0.11mm thick nitrile
Body protection: Wear appropriate protective clothing to prevent skin exposure.
Respiratory protection: A respiratory protection program that meets OSHA's 29 CFR 1910.134 and ANSI Z88.2 requirements or European Standard EN 149 must be followed whenever workplace conditions warrant a respirator's use.

9. Physical and Chemical Properties

General information

Appearance: Red-Brown powder
Odour: Not available.
pH: Not available.
Vapour Pressure: Not available.
Density: Not available.
Boiling Point: Not available.
Melting Point: >300°C (>572°F)
Solubility: Not available.
Specific Gravity of Density: Not available.
Flash Point: Not available
Flammable (Explosive) Limits: Not available
Ignition Temperature: Not available
Formula: C27H35Cl2N3)n*xZnCl2

10. Stability and Reactivity

Reactivity: No further relevant information available.
Chemical stability: Stable under normal temperatures and pressures.
Possibility of hazardous reactions: No further relevant information available.
Conditions to avoid: Incompatible materials, dust generation, strong oxidants.
Incompatible materials: Strong oxidising agents.

11. Toxicological Information

Acute effects: No further relevant information available.
Eye contact: No further relevant information available.
Skin contact: No further relevant information available.
Ingestion: No further relevant information available.
Inhalation: No further relevant information available.
Toxicity and irritation: No further relevant information available.

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

Chemical waste generators must determine whether a discarded chemical is classified as a hazardous waste. US EPA guidelines for the classification determination are listed in 40 CFR Parts 261.3. Additionally, waste generators must consult state and local hazardous waste regulations to ensure complete and accurate classification.

14. Transport Information

ADG label required

HAZCHEM: Not available.
UN Number: None.
Proper shipping name: 4[[4-(dimethylamino)phenyl][4-(dimethyliminio)cyclohexa-2,5-dien-1-ylidene]methyl]-N-ethyl-N,N-dimehtylanilinium bromide chloride.
Transport hazard class: 0
Packing group: None.
Environmental hazard: No information available.
Special precautions for users: Acute Health Hazard.
Additional information: No information available.

15. Regulatory Information

Poisons Schedule Number: Not listed.
Other Information: No further relevant information available.

16. Other Information

SDS preparation date: 24 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.