SAFETY DATA SHEET

Di Sodium Salt (SITS)

Version 1Last reviewed 27 February 2026Catalogue: 10030, EMS10030

1. Identification

Product Identifiers

Product Name: Di Sodium Salt (SITS)
Other Names: Not available.
Product Number(s): 10030, EMS10030
CAS Number: 51023-76-8

Recommended use of the chemical and restriction on use

Laboratory chemicals

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

GHS06 skull and crossbones
Acute Tox. 3 H301 Toxic if swallowed.
GHS08 Health hazard
Resp. Sens. 1 H334 May cause allergy or asthma symptoms or breathing difficulties if inhaled.
GHS07
Skin Irrit. 2 H315 Causes skin irritation.
Eye Irrit. 2A H319 Causes serious eye irritation.
STOT SE 3 H335 May cause respiratory irritation.

Label Elements

Signal Words: None
Hazard Statement(s): Hazard-determining components of labelling:
4-Acetamido-4'-isothiocyanostilbene-2,2'-disulfonic acid, disodium salt
Toxic if swallowed.
Causes skin irritation.
Causes serious eye irritation.
May cause allergy or asthma symptoms or breathing difficulties if inhaled.
May cause respiratory irritation.
Precautionary Statement(s): Avoid breathing dust/fume/gas/mist/vapours/spray.
Wash thoroughly after handling.
Do not eat, drink or smoke when using this product.
Use only outdoors or in a well-ventilated area.
Wear protective gloves/eye protection/face protection.
Wear respiratory protection.

Human Health

Inhalation: Remove victim to fresh air and keep at rest in a position comfortable for breathing. If experiencing respiratory symptoms: Call a POISON CENTER/doctor.
Ingestion: Immediately call a POISON CENTER/doctor. Rinse mouth.
Eyes: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. Call a POISON CENTER/doctor if you feel unwell. If eye irritation persists: Get medical advice/attention.
Skin: Wash with plenty of water. Take off contaminated clothing and wash it before reuse. If skin irritation occurs: Get medical advice/attention.

Environment

Store in a well-ventilated place. Keep container tightly closed.
Store locked up.
Dispose of contents/container in accordance with local/regional/national/international regulations.

3. Composition / Information on Ingredients

Name	CAS No.	Content (w/w)	Classification
4-Acetamido-4'-isothiocyanostilbene-2,2'-disulfonic acid, disodium salt	51023-76-8		Not Available

4. First Aid Measures

Ingestion: Do not induce vomiting; call for medical help immediately.
Inhalation: In case of unconscious 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. If symptoms persist, consult a doctor.
Other Information: Immediately remove any clothing soiled by the product.
In case of irregular breathing or respiratory arrest provide artificial respiration.

5. Firefighting Measures

Suitable extinguishing equipment

Fire: Use fire extinguishing methods suitable to surrounding conditions.
HAZCHEM: No further relevant information available.

Special protective equipment and precautions for fire fighters

No special measures required.

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 container 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 eyes and skin.

Personal protective equipment

Eye and face protection: Tightly sealed goggles.
Skin protection: Protective gloves. The glove material has to be impermeable and resistant to the product/the substance/the preparation. Selection of the glove material on consideration of the penetration times, rates of diffusion and the degradation. The exact break through time has to be found out by the manufacturer of the protective gloves and has to be observed.
Body protection: Protective clothing.
Respiratory protection: In case of brief exposure or low pollution use respiratory filter device. In case of intensive or longer exposure use self-contained respiratory protective device.

9. Physical and Chemical Properties

General information

Appearance: Solid
Odour: Characteristic.
pH: Not determined.
Vapour Pressure: Not determined.
Density: Not determined.
Boiling Point: Undetermined.
Melting Point: Undetermined.
Solubility: Fully miscible in water.
Specific Gravity of Density: Not available.
Flash Point: Not applicable.
Flammable (Explosive) Limits: Not determined.
Ignition Temperature: Not determined.
Formula: C₁₇H₁₂N₂O₇S₃Na₂

10. Stability and Reactivity

Reactivity: No further relevant information available.
Chemical stability: No decomposition if used according to specifications.
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: No further relevant information available.
Eye contact: Irritating effect.
Skin contact: Irritant to skin and mucous membranes.
Ingestion: No further relevant information.
Inhalation: Sensitisation possible through inhalation.
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: Water hazard class 1: Slightly hazardous for water.
Do not allow undiluted product or large quantities of it to reach ground water, water course or sewage system.

13. Disposal Considerations

General information

Must not be disposed together with household garbage. Do not allow product to reach sewage system.
Disposal must be made according to official regulations.
Recommended cleansing agents: Water, if necessary together with cleansing agents.

14. Transport Information

ADG label required

HAZCHEM: No further relevant information available.
UN Number: UN2810
Proper shipping name: 2810 TOXIC LIQUID, ORGANIC, N.O.S. (4-Acetamido-4'-isothiocyanostilbene-2,2'-disulfonic acid, disodium salt)
Transport hazard class: Class 6.1 Toxic substances.
Packing group: III
Environmental hazard: Not applicable.
Special precautions for users: Warning: Toxic substances.
Hazard identification number (Kemler code): 60
EMS Number: F-A, S-A
Stowage Category: A
Stowage Cde: SW2 Clear of living quarters.
Additional information: Limited quantities (LQ): 5L
Excepted quantities (EQ) Code: E1
Maximum net quantity per inner packaging: 30mL
Maximum net quantity per outer packaging: 1000mL
Transport category: 2
Tunnel restriction code: E

15. Regulatory Information

Poisons Schedule Number: Substance is not listed.
Other Information: A Chemical Safety Assessment has not been carried out.

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.