Styrene

99% For Laboratory Use
CAS Number
100-42-5
HSN Code
29025000
Molecular Formula
C8H8
Catalogue Number
AL4373
Purity
≥99%
Molecular Weight
104.15 g/mol

Complies with : IP | BP | USP | EP | ACS

ISO 9001 ISO 14001 GMP COA with every batch

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Key Properties

Appearance Colorless to yellowish, oily liquid
Shelf Life 12 months
Packaging Available in: 500 ml glass bottle, 2.5 Lt glass bottle
Storage Fireproof. Separated from incompatible materials. See Chemical Dangers. Cool. Keep in the dark. Store only if stabilized. Store in an area without drain or sewer access.

Styrene monomer, stabilized appears as a clear colorless to dark liquid with an aromatic odor. Vapors heavier than air and irritating to the eyes and mucous membranes.

Also known as Vinylbenzene, Phenylethylene.

Catalogue No.
AL4373
CAS Number
100-42-5
Molecular Formula
C8H8
Molecular Weight
104.15 g/mol
HSN Code
29025000
Grade
99%
Product Form
Substance

Melting point: -30.65 °C; Boiling point: 145.3 °C; Flash point: 32.0 °C (89.6 °F) - closed cup; Density: 0.9016 g/cu cm at 25 °C; Solubility: In water, 300 mg/L at 25 °C.

Appearance
Colorless to yellowish, oily liquid
Shelf Life
12 months
Packaging
Available in: 500 ml glass bottle, 2.5 Lt glass bottle
Storage
Fireproof. Separated from incompatible materials. See Chemical Dangers. Cool. Keep in the dark. Store only if stabilized. Store in an area without drain or sewer access.

1.1 — Product identifier

Chemical Name
Styrene
Catalogue No.
AL4373
Product form
Substance
CAS Number
100-42-5
EC Number
202-851-5
Grade
99%
EC Index Number
601-026-00-0
Chemical Formula
C8H8
HSN Code
29025000
Synonyms
Vinylbenzene, Phenylethylene

1.2 — Relevant identified uses of the substance or mixture and uses advised against

Use of the substance/mixture
Used as a monomer in the production of polystyrene and synthetic rubber.
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

2.1 — Classification of the substance or mixture

Classification according to Regulation (EC) No 1272/2008
Flam. Liq. 3; Asp. Tox. 1; Skin Irrit. 2; Eye Irrit. 2; Acute Tox. 4; STOT SE 3; STOT RE 1
Classification source
ECHA C&L Inventory via PubChem CID 7501 - hazard classes notified by at least 50% of companies; pictograms and signal word derived from those statements

2.2 — Label elements

Hazard pictograms
Flammable, Irritant, Health Hazard
Signal word
Danger
Hazard statements
H226: Flammable liquid and vapor; H304: May be fatal if swallowed and enters airways; H315: Causes skin irritation; H319: Causes serious eye irritation; H332: Harmful if inhaled; H335: May cause respiratory irritation; H372: Causes damage to organs through prolonged or repeated exposure

2.3 — Other hazards

Other hazards
Suspected carcinogen; may cause respiratory irritation.

3.1 — Substance

Name
Styrene
CAS No.
100-42-5

4.1 — Description of first aid measures

First-aid measures after inhalation
If this chemical has been inhaled, remove the exposed person to fresh air at once. If breathing has stopped, perform artificial respiration. Keep the person warm and at rest.
First-aid measures after skin contact
If this chemical contacts the skin, flush the contaminated skin with water. Where there is evidence of skin irritation, get medical attention.
First-aid measures after eye contact
If this chemical contacts the eyes, immediately wash (irrigate) the eyes with large amounts of water, occasionally lifting the lower and upper lids. Get medical attention immediately.
First-aid measures after ingestion
If this chemical has been swallowed, get medical attention immediately.

4.2 — Most important symptoms and effects, both acute and delayed

Symptoms relating to use
Headache, dizziness, nausea, respiratory irritation.

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
Use water spray, alcohol-resistant foam, dry chemical or carbon dioxide.
Unsuitable extinguishing media
Not specified

5.2 — Special hazards arising from the substance or mixture

Special procedures
Electrical ignition hazard: May be ignited by static discharge.

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. Remove all sources of ignition. Ventilate area.

6.3 — Methods and material for containment and cleaning up

Methods for cleaning up
Personal protection: chemical protection suit including self-contained breathing apparatus. Remove all ignition sources. Do NOT let this chemical enter the environment. Do NOT wash away into sewer.

6.4 — Reference to other sections

Reference
Not specified

7.1 — Precautions for safe handling

Precautions for safe handling
Use in a fume hood. Wear appropriate personal protective equipment (PPE). 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
Fireproof. Separated from incompatible materials. See Chemical Dangers. Cool. Keep in the dark. Store only if stabilized. Store in an area without drain or sewer access.

8.2 — Exposure controls

Hand protection
Handle with gloves.
Eye protection
Face shield and safety glasses. Use equipment for eye protection tested and approved under appropriate government standards such as NIOSH (US) or EN 166(EU).
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
Liquid
Colour
Colorless to pale yellow
Odour
Characteristic, sweet, balsamic, almost floral odor that is extremely penetrating
Odour threshold
0.3 ppm
pH value
Not applicable
Relative evaporation rate (butylacetate=1)
>1
Melting point
-30.65 °C
Freezing point
Not applicable
Boiling point
145.3 °C
Flash point
32.0 °C (89.6 °F) - closed cup
Auto-ignition temperature
914 °F (490 °C)
Decomposition temperature
Not available
Flammability (solid, gas)
Flammable liquid
Vapour pressure
6.40 mm Hg at 25 °C
Relative vapour density at 20°C
3.6 (Air = 1)
Density
0.9016 g/cu cm at 25 °C
Solubility
In water, 300 mg/L at 25 °C
Log Pow
2.95
Viscosity, kinematic
Not available
Viscosity, dynamic
0.89 mPa·s at 20 °C
Explosive properties
Not explosive
Oxidising properties
Not oxidizing
Explosive limits
1.1 - 6.1% (v/v) in air

10.1 — Reactivity

Reactivity
Reacts with strong oxidizing agents and can polymerize spontaneously if uninhibited.

10.2 — Chemical stability

Chemical stability
Stable under recommended storage conditions. Test for peroxide formation before distillation or evaporation.

10.3 — Possibility of hazardous reactions

Possibility of hazardous reactions
The substance can form explosive peroxides. The substance may polymerize due to warming, under the influence of light, oxidants, oxygen and peroxides. This generates fire and explosion hazard.

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
Hazardous decomposition products formed under fire conditions - Carbon oxides.

11.1 — Information on toxicological effects

Acute toxicity
LD50 Rat oral 5000 mg/kg; LC50 Mouse 4940 ppm/2 hr; LC50 Rat 2770 ppm/4 hr
Skin corrosion/irritation
H315: Causes skin irritation
Serious eye damage/irritation
H319: Causes serious eye irritation
Respiratory or skin sensitisation
Not classified (based on available data)
Germ cell mutagenicity
Not classified (based on available data)
Carcinogenicity
Not classified (based on available data)
Specific target organ toxicity (single exposure)
H335: May cause respiratory irritation
Specific target organ toxicity (repeated exposure)
H372: Causes damage to organs through prolonged or repeated exposure

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)
2055
UN-No. (IMDG)
2055
UN-No. (IATA)
2055
UN-No. (ADN)
2055
UN-No. (RID)
2055

14.2 — UN proper shipping name

Proper Shipping Name (ADR)
Styrene
Proper Shipping Name (IMDG)
Styrene
Proper Shipping Name (IATA)
Styrene
Proper Shipping Name (ADN)
Styrene
Proper Shipping Name (RID)
Styrene

14.3 — Transport hazard class(es)

Transport hazard class(es)
3

14.4 — Packing group

Packing group (ADR)
III
Packing group (IMDG)
III
Packing group (IATA)
III
Packing group (ADN)
III
Packing group (RID)
III

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

Styrene is primarily used as a monomer in the production of polystyrene, which is utilized in a variety of applications including packaging, insulation, and disposable cutlery. Additionally, it is a key component in the synthesis of acrylonitrile-butadiene-styrene (ABS) and styrene-butadiene rubber (SBR), both of which are important materials in the automotive and consumer goods industries. Styrene is also used in the production of various copolymers and resins, making it vital for the manufacturing of adhesives, coatings, and other specialty chemicals.

ISO 9001 ISO 14001 GMP COA with every batch
Batch Number
AL-2026-AL01473
Manufacturing Date
September-2026
Expiry Date
September-2031
Molecular Weight
104.15 g/mol
Test Standard Observed
Assay (Purity) ≥99% 99.5%
Density 0.906 g/mL 0.905 g/mL
Boiling Point 145 °C 144.8 °C
Flash Point 30 °C 29 °C
Moisture Content ≤0.1% 0.05%
Residue on Ignition ≤0.01% 0.005%
Related Substances None detected None detected

The above product is expected to comply with 99% grade specification.

Technical Data Sheet

Grade Assay/Purity Melting/Boiling Point Moisture/LOD Residue on Ignition Related Substances Solubility
99% ≥99% m.p. -30.65 °C; b.p. 145.3 °C ≤0.1% ≤0.01% None detected In water, 300 mg/L at 25 °C
View full Technical Data Sheet

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