Thiosemicarbazide
- CAS Number
- 79-19-6
- HSN Code
- 29309099
- Molecular Formula
- CH5N3S
- Catalogue Number
- AL01505
- Purity
- 99%
- Molecular Weight
- 91.14 g/mol
Complies with : IP | BP | USP | EP | ACS
ISO 9001
ISO 14001
GMP
COA with every batch
Key Properties
Thiosemicarbazide is an organic compound classified as a thiosemicarbazone derivative, notable for its applications in various fields including pharmaceuticals and analytical chemistry. This AR-grade thiosemicarbazide is characterized by its high purity of 99%, making it suitable for precise analytical and synthetic applications. With a CAS number of 79-19-6, it is recognized for its role as a reagent in the synthesis of heterocyclic compounds, which are essential in drug development and other chemical research. Its molecular structure features a thiocarbonyl group, contributing to its reactivity and utility in forming coordination complexes with metals.
Also known as Thiosemicarbazide, Thiosemicarbazone.
- Catalogue No.
- AL01505
- CAS Number
- 79-19-6
- Molecular Formula
- CH5N3S
- Molecular Weight
- 91.14 g/mol
- HSN Code
- 29309099
- Grade
- AR (Analytical Reagent)
- Product Form
- Substance
Thiosemicarbazide appears as a white to pale yellow crystalline powder. It has a melting point of approximately 150-155 °C and is soluble in water and alcohol, which enhances its utility in various chemical reactions. The compound has a density of about 1.36 g/cm³, and its boiling point is around 200 °C at 760 mmHg. The compound has a characteristic odor, which is often described as faintly sulfurous. Its hygroscopic nature means it can absorb moisture from the air, which should be considered during storage and handling.
- Appearance
- White to pale yellow crystalline powder
- Shelf Life
- 2 years
- Packaging
- Available in 100 g and 500 g bottles
- Storage
- Store in a cool, dry place, away from moisture and incompatible materials.
1.1 — Product identifier
- Chemical Name
- Thiosemicarbazide
- Catalogue No.
- AL01505
- Product form
- Substance
- CAS Number
- 79-19-6
- EC Number
- 201-167-0
- Grade
- AR
- EC Index Number
- 612-059-00-0
- Chemical Formula
- CH5N3S
- HSN Code
- 29309099
- Synonyms
- Thiosemicarbazide, Thiosemicarbazone
1.2 — Relevant identified uses of the substance or mixture and uses advised against
- Use of the substance/mixture
- Analytical reagent, pharmaceutical intermediate
- Uses advised against
- Not specified
1.3 — Details of the supplier of the safety data sheet
- Company identification
- Address:- 102, B wing, Savgan Heights, RTO Lane,Andheri (W), Mumbai-400 053Maharashtra, India.
1.4 — Emergency Contact Details
- Phone / e-Mail
- Phone : +91 22 26317055 Mobile : +91 9820385757 e-mail : info@alphachemika.co.in
2.3 — Other hazards
- Other hazards
- Toxic if swallowed, inhaled, or absorbed through skin.
3.1 — Substance
- Name
- Thiosemicarbazide
- CAS No.
- 79-19-6
4.1 — Description of first aid measures
- First-aid measures after inhalation
- Move to fresh air. If symptoms persist, seek medical attention.
- First-aid measures after skin contact
- Wash with soap and water. Seek medical attention if irritation develops.
- First-aid measures after eye contact
- Rinse cautiously with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing and seek medical attention.
- First-aid measures after ingestion
- Do not induce vomiting. Rinse mouth and seek medical attention immediately.
4.2 — Most important symptoms and effects, both acute and delayed
- Symptoms relating to use
- Symptoms of exposure may include headache, dizziness, nausea, and respiratory distress.
4.3 — Indication of any immediate medical attention and special treatment needed
- General information
- Treat symptomatically. Show this safety data sheet to the treating physician.
5.1 — Extinguishing media
- Suitable extinguishing media
- Water spray, carbon dioxide, dry chemical powder, foam.
- Unsuitable extinguishing media
- Not specified
5.2 — Special hazards arising from the substance or mixture
- Special procedures
- Toxic fumes may be released in a fire. Use appropriate fire-fighting measures.
5.3 — Advice for firefighters
- Protection during firefighting
- Do not enter fire area without proper protective equipment, including respiratory protection.
6.1.1 — For non-emergency personnel
- Emergency procedures
- Evacuate area and ventilate. Wear appropriate protective equipment.
6.3 — Methods and material for containment and cleaning up
- Methods for cleaning up
- Contain spill and collect using appropriate materials. Dispose of in accordance with local regulations.
6.4 — Reference to other sections
- Reference
- Not specified
7.1 — Precautions for safe handling
- Precautions for safe handling
- Handle with gloves and in a well-ventilated area. Avoid contact with skin and eyes.
- Hygiene measures
- Wash hands and other exposed areas with mild soap and water before eating, drinking or smoking and when leaving work.
7.2 — Conditions for safe storage, including any incompatibilities
- Storage conditions
- Store in a tightly closed container in a cool, dry place, away from incompatible materials.
8.2 — Exposure controls
- Hand protection
- Protective gloves (e.g. nitrile rubber)
- Eye protection
- Chemical safety goggles or safety glasses
- Skin and body protection
- Wear suitable protective clothing
- Respiratory protection
- Use appropriate respiratory protection if ventilation is inadequate.
9.1 — Information on basic physical and chemical properties
- Physical state
- Solid
- Colour
- White to pale yellow
- Odour
- Faintly sulfurous
- Odour threshold
- No data available
- pH value
- No data available
- Relative evaporation rate (butylacetate=1)
- No data available
- Melting point
- 150-155 °C
- Freezing point
- No data available
- Boiling point
- 200 °C
- Flash point
- No data available
- Auto-ignition temperature
- No data available
- Decomposition temperature
- No data available
- Flammability (solid, gas)
- Not flammable
- Vapour pressure
- No data available
- Relative vapour density at 20°C
- No data available
- Density
- 1.36 g/cm³
- Solubility
- Soluble in water and alcohol
- Log Pow
- No data available
- Viscosity, kinematic
- No data available
- Viscosity, dynamic
- No data available
- Explosive properties
- Not explosive
- Oxidising properties
- Not oxidizing
- Explosive limits
- No data available
10.1 — Reactivity
- Reactivity
- Stable under normal conditions. Reacts with strong oxidizing agents.
10.2 — Chemical stability
- Chemical stability
- Stable under recommended storage conditions.
10.3 — Possibility of hazardous reactions
- Possibility of hazardous reactions
- No dangerous reactions known under normal conditions of use.
10.4 — Conditions to avoid
- Conditions to avoid
- Avoid contact with incompatible materials and excessive heat.
10.5 — Incompatible materials
- Incompatible materials
- Strong oxidizers, strong acids, and bases.
10.6 — Hazardous decomposition products
- Hazardous decomposition products
- Not specified
11.1 — Information on toxicological effects
- Acute toxicity
- Toxic if swallowed, inhaled, or absorbed through skin.
- Skin corrosion/irritation
- Causes skin irritation.
- Serious eye damage/irritation
- Causes serious eye irritation.
- Respiratory or skin sensitisation
- May cause allergic skin reaction.
- Germ cell mutagenicity
- Not classified
- Carcinogenicity
- Not classified
- Specific target organ toxicity (single exposure)
- May cause respiratory irritation.
- Specific target organ toxicity (repeated exposure)
- Not classified
12.1 — Toxicity
- Toxicity information
- Not specified
12.2 — Persistence - degradability
- Persistence - degradability
- Not specified
12.3 — Bioaccumulative potential
- Bioaccumulative potential
- Not specified
12.4 — Mobility in soil
- Mobility in soil
- Not specified
12.6 — Other adverse effects
- Environmental precautions
- Not specified
13.1 — Waste treatment methods
- Additional Info
- Dispose of contents/container in accordance with local, regional, national and international regulations.
14.1 — UN number
- UN-No. (ADR)
- UN 2811
- UN-No. (IMDG)
- UN 2811
- UN-No. (IATA)
- UN 2811
- UN-No. (ADN)
- UN 2811
- UN-No. (RID)
- UN 2811
14.2 — UN proper shipping name
- Proper Shipping Name (ADR)
- Toxic solid, organic, n.o.s.
- Proper Shipping Name (IMDG)
- Toxic solid, organic, n.o.s.
- Proper Shipping Name (IATA)
- Toxic solid, organic, n.o.s.
- Proper Shipping Name (ADN)
- Toxic solid, organic, n.o.s.
- Proper Shipping Name (RID)
- Toxic solid, organic, n.o.s.
14.3 — Transport hazard class(es)
- Transport hazard class(es)
- 6.1
14.4 — Packing group
- Packing group (ADR)
- II
- Packing group (IMDG)
- II
- Packing group (IATA)
- II
- Packing group (ADN)
- II
- Packing group (RID)
- II
14.5 — Environmental hazards
- Dangerous for the environment
- Not specified
- Marine pollutant
- Not specified
- Other information
- No supplementary information available
15.1 — Safety, health and environmental regulations/legislation specific for the substance or mixture
- 15.1.1 EU-Regulations
- Not specified
Thiosemicarbazide is widely used as an analytical-grade reagent in the synthesis of heterocyclic compounds, which are crucial in the pharmaceutical industry for drug development. It serves as an intermediate in the production of various pharmaceuticals, including anti-tuberculosis agents and other therapeutic compounds. Additionally, thiosemicarbazide is utilized in the preparation of metal complexes, which have applications in catalysis and materials science. Its role in research extends to the development of agrochemicals and as a reagent in organic synthesis, making it a versatile compound in chemical laboratories.
ISO 9001
ISO 14001
GMP
COA with every batch
- Batch Number
- AL-2026-AL01505
- Manufacturing Date
- September-2026
- Expiry Date
- September-2031
- Molecular Weight
- 91.14 g/mol
| Test | Standard | Observed |
|---|---|---|
| Purity | 99% min | 99.5% |
| Melting Point | 150-155 °C | 152 °C |
| Moisture Content | <0.5% | 0.3% |
| Residue on Ignition | <0.1% | 0.05% |
| Related Substances | None detected | None detected |
The above product is expected to comply with AR grade specification.
Technical Data Sheet
| Grade | Assay/Purity | Melting/Boiling Point | Moisture/LOD | Residue on Ignition | Related Substances | Solubility |
|---|---|---|---|---|---|---|
| AR | 99% | 150-155 °C | <0.5% | <0.1% | None detected | Soluble in water and alcohol |
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