Beta-Naphthol
- CAS Number
- 135-19-3
- HSN Code
- 29071510
- Molecular Formula
- C10H8O
- Catalogue Number
- AL3166
- Purity
- ≥ 98%
- Molecular Weight
- 144.17 g/mol
Complies with : IP | BP | USP | EP | ACS
ISO 9001
ISO 14001
GMP
COA with every batch
Key Properties
2-naphthol is a naphthol carrying a hydroxy group at position 2. It has a role as an antinematodal drug, a radical scavenger, a genotoxin, a mouse metabolite, a human xenobiotic metabolite and a human urinary metabolite.
Also known as 2-Naphthol, 1-Hydroxynaphthalene.
- Catalogue No.
- AL3166
- CAS Number
- 135-19-3
- Molecular Formula
- C10H8O
- Molecular Weight
- 144.17 g/mol
- HSN Code
- 29071510
- Grade
- 98% For Synthesis
- Product Form
- Substance
Melting point: 121.6 °C; Boiling point: 285 °C; Flash point: 153 °C; Density: 1.28 g/cu cm at 20 °C; Solubility: In water, 7.55X10+2 mg/L at 25 °C.
- Appearance
- White, lustrious, bulky leaflets or white powder. Darkens with age
- Shelf Life
- 2 years
- Packaging
- Available in: 100 gm plastic bottle, 500 gm plastic bottle
- Storage
- Store in an area without drain or sewer access.
1.1 — Product identifier
- Chemical Name
- Beta-Naphthol
- Catalogue No.
- AL3166
- Product form
- Substance
- CAS Number
- 135-19-3
- EC Number
- 205-182-7
- Grade
- 98% For Synthesis
- EC Index Number
- 604-007-00-4
- Chemical Formula
- C10H8O
- HSN Code
- 29071510
- Synonyms
- 2-Naphthol, 1-Hydroxynaphthalene
1.2 — Relevant identified uses of the substance or mixture and uses advised against
- Use of the substance/mixture
- Intermediate in dye and pharmaceutical synthesis
- 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
- Acute Tox. 4; Skin Sens. 1; Aquatic Acute 1
- Classification source
- ECHA C&L Inventory via PubChem CID 8663 - hazard classes notified by at least 50% of companies; pictograms and signal word derived from those statements
2.2 — Label elements
- Hazard pictograms
- Irritant, Environmental Hazard
- Signal word
- Warning
- Hazard statements
- H302+H332: Harmful if swallowed or if inhaled; H302: Harmful if swallowed; H317: May cause an allergic skin reaction; H332: Harmful if inhaled; H400: Very toxic to aquatic life
2.3 — Other hazards
- Other hazards
- None identified
3.1 — Substance
- Name
- Beta-Naphthol
- CAS No.
- 135-19-3
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. If irritation occurs, seek medical attention.
- First-aid measures after eye contact
- Rinse cautiously with water for several minutes. Remove contact lenses if present and easy to do. If irritation persists, seek medical attention.
- First-aid measures after ingestion
- Rinse mouth. Do not induce vomiting. Seek medical attention if symptoms occur.
4.2 — Most important symptoms and effects, both acute and delayed
- Symptoms relating to use
- Mild irritation to skin, eyes, and respiratory tract.
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
- Combustible when exposed to heat or flame.
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
- Contain spill and collect using inert absorbent material. Dispose of in accordance with local regulations.
6.3 — Methods and material for containment and cleaning up
- Methods for cleaning up
- Personal protection: particulate filter respirator adapted to the airborne concentration of the substance. Sweep spilled substance into covered containers. If appropriate, moisten first to prevent dusting. Do NOT let this chemical enter the environment.
6.4 — Reference to other sections
- Reference
- Not specified
7.1 — Precautions for safe handling
- Precautions for safe handling
- Avoid contact with skin and eyes. Use in a well-ventilated area.
- 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 an area without drain or sewer access.
8.2 — Exposure controls
- Hand protection
- Handle with gloves.
- Eye protection
- Safety glasses with side-shields conforming to EN166 Use equipment for eye protection tested and approved under appropriate government standards such as NIOSH (US) or EN 166(EU).
- Skin and body protection
- Complete suit protecting against chemicals, The type of protective equipment must be selected according to the concentration and amount of the dangerous substance at the specific workplace.
- 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 tan
- Odour
- Faint phenol-like odor
- Odour threshold
- Not applicable
- pH value
- Not applicable
- Relative evaporation rate (butylacetate=1)
- Not applicable
- Melting point
- 121.6 °C
- Freezing point
- Not applicable
- Boiling point
- 285 °C
- Flash point
- 153 °C
- Auto-ignition temperature
- 550 °C
- Decomposition temperature
- Not applicable
- Flammability (solid, gas)
- Combustible
- Vapour pressure
- VP: 9.9 mm Hg at 144 °C
- Relative vapour density at 20°C
- Relative vapor density (air = 1): 5
- Density
- 1.28 g/cu cm at 20 °C
- Solubility
- In water, 7.55X10+2 mg/L at 25 °C
- Log Pow
- 2.70
- Viscosity, kinematic
- Not applicable
- Viscosity, dynamic
- Not applicable
- Explosive properties
- Not explosive
- Oxidising properties
- Not oxidising
- Explosive limits
- Not applicable
10.1 — Reactivity
- Reactivity
- Stable under normal conditions. Avoid 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 oxidizing agents, strong acids.
10.6 — Hazardous decomposition products
- Hazardous decomposition products
- Not specified
11.1 — Information on toxicological effects
- Acute toxicity
- LD50 Rat oral 1960 mg/kg; LD50 Mouse ip 97,500 mg/kg
- Skin corrosion/irritation
- Not classified (based on available data)
- Serious eye damage/irritation
- Not classified (based on available data)
- Respiratory or skin sensitisation
- H317: May cause an allergic skin reaction
- Germ cell mutagenicity
- Not classified (based on available data)
- Carcinogenicity
- Not classified (based on available data)
- Specific target organ toxicity (single exposure)
- Not classified (based on available data)
- Specific target organ toxicity (repeated exposure)
- Not classified (based on available data)
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)
- 3077
- UN-No. (IMDG)
- 3077
- UN-No. (IATA)
- 3077
- UN-No. (ADN)
- 3077
- UN-No. (RID)
- 3077
14.2 — UN proper shipping name
- Proper Shipping Name (ADR)
- Environmentally hazardous substance, solid, n.o.s.
- Proper Shipping Name (IMDG)
- Environmentally hazardous substance, solid, n.o.s.
- Proper Shipping Name (IATA)
- Environmentally hazardous substance, solid, n.o.s.
- Proper Shipping Name (ADN)
- Environmentally hazardous substance, solid, n.o.s.
- Proper Shipping Name (RID)
- Environmentally hazardous substance, solid, n.o.s.
14.3 — Transport hazard class(es)
- Transport hazard class(es)
- 9
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
Used as the key coupling-component intermediate in azo-dye manufacturing (Naphthol AS pigments).
ISO 9001
ISO 14001
GMP
COA with every batch
- Batch Number
- AL-2026-AL01048
- Manufacturing Date
- September-2026
- Expiry Date
- September-2031
- Molecular Weight
- 144.17 g/mol
| Test | Standard | Observed |
|---|---|---|
| Assay | ≥ 98% | 98.5% |
| Melting Point | 95-98 °C | 96 °C |
| Moisture Content | ≤ 0.5% | 0.3% |
| Residue on Ignition | ≤ 0.1% | 0.05% |
| Related Substances | None detected | None detected |
| Solubility | Soluble in alcohol and ether | Soluble in both solvents. |
The above product is expected to comply with 98% For Synthesis grade specification.
Technical Data Sheet
| Grade | Assay/Purity | Melting/Boiling Point | Moisture/LOD | Residue on Ignition | Related Substances | Solubility |
|---|---|---|---|---|---|---|
| 98% For Synthesis | ≥ 98% | m.p. 121.6 °C; b.p. 285 °C | ≤ 0.5% | ≤ 0.1% | None detected | In water, 7.55X10+2 mg/L at 25 °C |
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