Monothioglycerol or Thioglycerin or Thioglycerol USP NF IP Grade Suppliers Exporters, CAS 96-27-5

Muby Group of USA & India is a pioneer manufacturers suppliers exporters & importers of chemicals including Monothioglycerol or Thioglycerin or Thioglycerol USP NF IP Grade, Hydraulic fracturing stimulation & oil well production chemicals, Pharmaceutical excipients and API, Fragrance & flavor chemicals. Muby Group has several manufacturing facilities and toll manufacturers across the globe. We have offices warehouses and representatives in Houston & Midland Texas and Chicago Illinois USA.

Our suppliers have accreditations like FDA - GMP-GLP approval, ISO-9001, ISO-22000 HACCP, Kosher & Halal Certification. We offer Commercial Pure Pharmacopoeia API Excipients Analytical Reagent & Food Grade of Chemicals and do Toll Manufacturing for Oil well drilling fracking fracturing and others.

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Monothioglycerol or Thioglycerin or Thioglycerol USP NF IP Grade Manufacturers

Monothioglycerol or Thioglycerol or Thioglycerin or 3-Mercaptopropane-1,2-diol
SDS, Safety Data Sheet
MSDS Sheet, Material Safety Data Sheet

1. Product Identification

Product Name & Other Names: Monothioglycerol or Thioglycerol or Thioglycerin or 3-Mercaptopropane-1,2-diol.
CAS No.: 96-27-5
EINECS EC-No.: 202-495-0
Molecular Weight: 108.16
Chemical Formula: C3H8O2S
Relevant uses and uses advised against (if any): Industrial Manufacturing.
Suppliers: As per letterhead.

2. Hazards Identification

GHS, Globally Harmonized System Classification in accordance with 29 CFR 1910
Classification according to Regulation (EC) No 1272/2008

Acute toxicity, Oral (Category 4) H302
Acute toxicity, Dermal (Category 3) H311
Skin irritation (Category 2), H315
Skin sensitization (Sub-category 1B), H317

Labeling according to GHS & Regulation (EC) No 1272/2008

GHS Label Elements Toxic

GHS Label Elements Irritant Harmful

Signal Words: Danger

Hazard statements:
H302: Harmful if swallowed.
H311: Toxic in contact with skin.
H315 Causes skin irritation.
H317 May cause an allergic skin reaction.

Precautionary statements:
P260: Do not breathe dust/fume/gas/mist/vapors/spray.
P262: Do not get in eyes, on skin, or on clothing.
P264: Wash skin thoroughly after handling.
P270: Do not eat, drink, or smoke when using this product.
P271: Use only outdoors or in a well-ventilated area.
P273: Avoid release to the environment.
P280: Wear protective gloves/protective clothing/eye protection/face protection.
P312: Call a POISON CENTER or doctor/physician if you feel unwell.
P301+P312: IF SWALLOWED: Call a POISON CENTER or doctor/physician if you feel unwell.
P302+P352: IF ON SKIN: Wash with soap and water.
P304+340: IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing.
P305+P351+P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
P314: Get Medical advice/attention if you feel unwell.
P330: Rinse mouth.
P301+330+331: IF SWALLOWED: Rinse mouth. Do NOT induce vomiting.
P332+P313: If skin irritation occurs: Get medical advice/attention.
P333+313: If skin irritation or a rash occurs: Get medical advice/attention.
P337+P313: If eye irritation persists: Get medical advice/ attention.
P360: Rinse immediately contaminated clothing and skin with plenty of water before removing clothes.
P391: Collect spillage.
P405: Store locked up.
P501: Dispose of contents / container to an approved waste disposal plant.

3. Composition/Information on Ingredients

Product Name & Other Names: Monothioglycerol or Thioglycerol or Thioglycerin or 3-Mercaptopropane-1,2-diol.
CAS No.: 96-27-5
EINECS EC-No.: 202-495-0

4. First Aid Measures

Always seek medical attention after first aid measures are provided.

Inhalation: Remove to fresh air. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical attention.
Ingestion: Never give anything by mouth to an unconscious person. Get medical attention.
Skin Contact: Wipe off excess material from skin then immediately flush skin with plenty of water for at least 15 minutes. Remove contaminated clothing and shoes. Get medical attention. Wash clothing before reuse. Thoroughly clean shoes before reuse.
Eye Contact: Immediately flush eyes with plenty of water for at least 15 minutes, lifting lower and upper eyelids occasionally. Get medical attention immediately.

5. Fire Fighting Measures

Flammability of the Product: Non-flammable. However, it will burn at elevated temperature.
Products of Combustion: Sulphur oxides, Carbon oxides, fumes.
Fire Extinguishing Media: Use water spray, alcohol-resistant foam, dry chemical, or carbon dioxide. Use water to cool fire-exposed containers.
Special Information: In the event of a fire, wear full protective clothing and NIOSH-approved self-contained breathing apparatus with full face piece operated in the pressure demand or other positive pressure mode. At elevated temperatures under fire conditions, it may produce toxic or irritating fumes. Fire-extinguishing work is done from the windward and the suitable fire-extinguishing method according to the surrounding situation is used. On decomposition it may emit hydrogen sulfide. Containers may explode on heating.

6. Accidental Release Measures

Personal precautions, protective equipment, and emergency procedures: Avoid breathing dust/fumes/gas/mist/vapors/spray. Use individual protective equipment (waterproof boots, suitable protective clothing, safety glasses, etc.). Restrict unprotected personnel from the area. Prevent any contact with hot surfaces. Do not approach facing the wind.
Environmental precautions: Do not let the product enter drains, soil, or water sources.
Methods and materials used for containment cleanup procedures and Storage: Corrosive solid. Avoid touching the spilled material. Do not inhale dust, vapors, mist, or gas. Avoid dust formation. Contain spilled material. Cover with an inert, non-combustible absorbent material, (e.g., sand, earth, diatomaceous earth, vermiculite). Use a shovel to put the material into a convenient waste disposal container.

7. Handling and Storage

Precautions for safe handling: Do not ingest. Do not breathe dust. Apply according to good manufacturing and industrial hygiene practices. Ensure proper ventilation. In case of insufficient ventilation, wear suitable respiratory equipment. Wash thoroughly after handling. Do not drink, eat, or smoke while handling. Avoid contact with skin, eyes, and clothing. Minimize dust generation. Avoid breathing dust/fumes/gas/mist/vapors/spray. Keep container tightly closed. Avoid ingestion and inhalation. Use individual protective equipment (waterproof boots, suitable protective clothing, safety glasses, etc.). Prevent any contact with hot surfaces.
Conditions for safe storage, including any incompatibilities: Store in cool, dry, and ventilated area away from heat sources and protected from sunlight in tightly closed original container. Keep air contact to a minimum. Store protected from heat, sparks and ignition sources and incompatible materials. Avoid inhalation of dust/mist/vapor. Do not store with incompatible materials like strong oxidizing agents.

8. Exposure Controls/Personal Protection

Airborne Exposure Limits: Not established for the product.
Ventilation System: A system of local and/or general exhaust is recommended to keep employee exposures as low as possible.
Personal Respirators (NIOSH Approved): For conditions of use where exposure to dust or mist is apparent and engineering controls are not feasible, a particulate respirator may be worn.
Skin Protection: Wear protective gloves and clean body-covering clothing.
Eye Protection: Use chemical safety goggles and/or full-face shield where dusting or splashing of solutions is possible. Maintain eye wash fountain and quick-drench facilities in work area.
Other Control Measures: Maintain good housekeeping in work area. Handle in accordance with good industrial hygiene and safety practice. Wash hands after handling.

9. Physical and Chemical Properties

Appearance: Viscous colorless to faint yellowish liquid.
Odor: Slight sulfide odor.
Odor threshold: Not available.
pH: 10% solution 3.5–7.0
Relative density: around 1.25
Boiling Point: 118C - lit.
Melting Point: Not available.
Flash point: Not available.
Auto-ignition temperature: Not available.
Decomposition temperature: Not available.
Upper/lower flammability or explosive limits: Not available.
Vapor pressure: Not available.
Vapor density: Not available.
Evaporation rate: Not available.
Flammability (solid, gas): Not available.
Partition coefficient: n-octanol/water: Not available.
Solubility: Not available.
Viscosity: Not available.

10. Stability and Reactivity

Stability: Stable under ordinary conditions of use and storage. One can say it is moderately stable in atmospheric condition. Aqueous solutions and moist solid may slowly give off hydrogen sulfide gas. Air and light sensitive. May discolor on exposure to air.
Hazardous Decomposition Products: It emits toxic fumes when heated to decomposition. It may form carbon oxide and sulfur oxide.
Hazardous Polymerization: Will not occur.
Incompatibilities: Bases, oxidizing agents, Reducing agents, Alkali metals.
Conditions to Avoid: Incompatibles and moisture.

11. Toxicological Information

Toxicity data
Oral LD50 Rat: 648 mg/kg.
LD50 Dermal: 673 mg/kg ( Rabbit ).
LC50 Inhalation - Rat - 4 h - > 0,51 mg/l
Carcinogenicity: No component of this product present at levels greater than or equal to 0.1% is identified as possible or confirmed human carcinogen by IARC, ACGIH, OSHA and NTP.
Mutagenic Effects: Not available.
Teratogenic Effects: Not available.
Developmental Toxicity: Not available.

12. Ecological Information

Toxicity to fish: flow-through test LC50 - Oncorhynchus mykiss (rainbow trout) - 35 mg/l - 96 h.
Results of PBT and vPvB assessment: Not PMR ot vPvB.

13. Disposal Considerations

Whatever cannot be saved for recovery or recycling should be managed in an appropriate and approved waste disposal facility. Follow all the pollution control rules.

14. Transport Information

DOT USA, TDG Canada & ADR/RID Europe:
UN number: 2810 Class: 6.1 Packing group: III
Proper shipping name: Toxic liquid, organic, n.o.s. (3-Mercaptopropane-1,2-diol)
IMDG/IMO:
UN number: 2810 Class: 6.1 Packing group: III
Proper shipping name: Toxic liquid, organic, n.o.s. (3-Mercaptopropane-1,2-diol)
IATA/ICAO:
UN number: 2810 Class: 6.1 Packing group: III
Proper shipping name: Toxic liquid, organic, n.o.s. (3-Mercaptopropane-1,2-diol)

15. Regulatory Information

USA:
California Prop. 65 Components: Not listed.

16. Other Information

Disclaimer:
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Our company provides this MSDS sheet in good faith but makes no representation as to its comprehensiveness or accuracy. This SDS sheet is intended only as a guide to the appropriate precautionary handling of the material by a properly trained person using this product. The above information has been compiled from various sources and has the possibility of discrepancy and being out-dated information. Individuals receiving the information must exercise their independent judgment and do further search in determining its appropriateness for a particular purpose. In no case shall our company be liable to loss or damages by the product user.
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11 October, 2026