Methylene Blue, C.I. 52015

1. Identification

Product Identifiers

Product Name

Methylene Blue, C.I. 52015

Other Names

Basic Blue 9, Tetramethylthionine chloride

Product Number(s)

C124, C1241, C1245

CAS Number

7220-79-3

Recommended use of the chemical and restriction on use

Company Details

Emergency Contact Details

2. Hazards Identification

Classification of the substance or mixture

Label Elements

Signal Words

Warning

Hazard Statement(s)

H302: Harmful if swallowed

Precautionary Statement(s)

• P264: Wash skin thoroughly after handling
• P270: Do not drink, eat, smoke, when using this product.
• P301 ± P312 ±P330: If Swallowed: Call Poison Centre or doctor/physician if you feel unwell. Rinse mouth.
• P501: Dispose of contents/container to an approved waste disposal plant.

Primary route(s) of entry

Human Health

Inhalation

Harmful by inhalation.

Ingestion

Harmful if swallowed.

Eyes

Risk of serious damage to eyes.

Skin

Harmful in contact with skin.

Environment

3. Composition / Information on Ingredients

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.

Other Information

Notes to Physician: Treat symptomatically and supportively.

5. Firefighting Measures

Suitable extinguishing equipment

Fire

Methylene Blue does not burn. Not considered to be a fire hazard. Water spray, carbon dioxide, dry chemical powder or alcohol-resistant foam.

Large Fire

Water spray, carbon dioxide, dry chemical powder or alcohol-resistant foam.

HAZCHEM

Not available.

Special protective equipment and precautions for fire fighters

6. Accidental Release Measures

Personal precautions, protective equipment and emergency procedures

Use proper PPE as indicated in Section 8.

Environmental precautions

Not available.

Methods and materials for containment and clean up

Ventilate area of leak or spill. Pick up and place in a suitable container for reclamation or disposal, using a method that does not generate dust. Clean up spills immediately, observing precautions in the Protective Equipment section.

7. Handling and Storage

Precautions for safe handling

Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Avoid contact with eyes, skin, and clothing. Avoid dust formation and control ignition sources.

Conditions for safe storage

Store in a tightly closed container. Store in a cool, dry ventilated area away from incompatible substances.

8. Exposure Controls / Personal Protection

Exposure Standards

Engineering controls

None required in normal use.

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 EN 166.

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

Follow the OSHA respirator regulations found in 29 CFR 1910.134 or European Standard EN 149. Always use a NIOSH or European Standard EN 149 approved respirator when necessary.

9. Physical and Chemical Properties

General information

Appearance

Dark green powder

Odour

Not available.

pH

Not available.

Vapour Pressure

Not available.

Density

Not available.

Boiling Point

Not available.

Melting Point

190°C

Solubility

Soluble

Specific Gravity of Density

Not available.

Flash Point

Not available.

Flammable (Explosive) Limits

Not available.

Ignition Temperature

Not available.

Formula

Not available.

10. Stability and Reactivity

Reactivity

No further relevant information available.

Chemical stability

Stable under ordinary conditions of use and storage.

Possibility of hazardous reactions

Will not occur.

Conditions to avoid

Heat, flame, ignition sources, dusting and incompatibilities.

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

RTEC: SP5740000 LD50/LC50: No information available. Carcinogenicity: CAS#7220-79-3: Not listed by ACGIH, IARC, NIOSH, NTP or OSHA.

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

14. Transport Information

ADG label required

HAZCHEM

Not available.

UN Number

None.

Proper shipping name

Not regulated.

Transport hazard class

0

Packing group

None.

Environmental hazard

No information available.

Special precautions for users

Not regulated.

Additional information

Not regulated.

15. Regulatory Information

Poisons Schedule Number

No information available.

Other Information

None of the chemicals are known to cause canc

16. Other Information

SDS preparation date

25 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.