Sulfanilic Acid
- CAS Number
- 121-57-3
- HSN Code
- 29214234
- Molecular Formula
- NH2C6H4SO3H
- Catalogue Number
- AL4401
- Purity
- 99%
- Molecular Weight
- 173.19 g/mol
Complies with : IP | BP | USP | EP | ACS
ISO 9001
ISO 14001
GMP
COA with every batch
Key Properties
4-aminobenzenesulfonic acid is an aminobenzenesulfonic acid that is aniline sulfonated at the para-position. It has a role as a xenobiotic, an allergen, a xenobiotic metabolite and an environmental contaminant.
Also known as 4-Aminobenzenesulfonic acid.
- Catalogue No.
- AL4401
- CAS Number
- 121-57-3
- Molecular Formula
- NH2C6H4SO3H
- Molecular Weight
- 173.19 g/mol
- HSN Code
- 29214234
- Grade
- AR (Analytical Reagent)
- Product Form
- Substance
Melting point: 288 °C decomposes without melting; Density: 1.485 at 25 °C/4 °C; Solubility: Insoluble in ethanol and ether.
- Appearance
- Orthorhombic plates or monoclinic from water
- Shelf Life
- 2 years
- Packaging
- Available in: 100 gm plastic bottle, 500 gm plastic bottle
- Storage
- Separated from strong acids and strong bases.
1.1 — Product identifier
- Chemical Name
- Sulfanilic Acid
- Catalogue No.
- AL4401
- Product form
- Substance
- CAS Number
- 121-57-3
- EC Number
- 204-482-5
- Grade
- AR
- EC Index Number
- 612-007-00-6
- Chemical Formula
- NH2C6H4SO3H
- HSN Code
- 29214234
- Synonyms
- 4-Aminobenzenesulfonic acid
1.2 — Relevant identified uses of the substance or mixture and uses advised against
- Use of the substance/mixture
- Analytical reagent
- 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
- Skin Irrit. 2; Skin Sens. 1; Eye Irrit. 2
- Classification source
- ECHA C&L Inventory via PubChem CID 8479 - hazard classes notified by at least 50% of companies; pictograms and signal word derived from those statements
2.2 — Label elements
- Hazard pictograms
- Irritant
- Signal word
- Warning
- Hazard statements
- H315: Causes skin irritation; H317: May cause an allergic skin reaction; H319: Causes serious eye irritation
- Precautionary statements
- P261, P264, P264+P265, P272, P280, P302+P352, P305+P351+P338, P321, P332+P317, P333+P317, P337+P317, P362+P364, P501
2.3 — Other hazards
- Other hazards
- None identified
3.1 — Substance
- Name
- Sulfanilic Acid
- CAS No.
- 121-57-3
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
- IMMEDIATELY flood affected skin with water while removing and isolating all contaminated clothing. Gently wash all affected skin areas thoroughly with soap and water.
- First-aid measures after eye contact
- First check the victim for contact lenses and remove if present. Flush victim's eyes with water or normal saline solution for 20 to 30 minutes while simultaneously calling a hospital or poison control center.
- 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
- May cause 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
- 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
- Non-flammable, but may emit toxic fumes in a fire.
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 appropriate protective equipment.
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. Do NOT let this chemical enter the environment. Sweep spilled substance into covered sealable containers. If appropriate, moisten first to prevent dusting.
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
- Separated from strong acids and strong bases.
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 dust is generated.
9.1 — Information on basic physical and chemical properties
- Physical state
- Solid
- Colour
- White
- Odour
- Slight
- Odour threshold
- Not applicable
- pH value
- Not applicable
- Relative evaporation rate (butylacetate=1)
- Not applicable
- Melting point
- 288 °C decomposes without melting
- Freezing point
- Not applicable
- Boiling point
- Not applicable
- Flash point
- Not applicable
- Auto-ignition temperature
- Not applicable
- Decomposition temperature
- Not applicable
- Flammability (solid, gas)
- Not flammable
- Vapour pressure
- Not applicable
- Relative vapour density at 20°C
- Not applicable
- Density
- 1.485 at 25 °C/4 °C
- Solubility
- Insoluble in ethanol and ether
- Log Pow
- -2.16
- Viscosity, kinematic
- Not applicable
- Viscosity, dynamic
- Not applicable
- Explosive properties
- Not explosive
- Oxidising properties
- Not oxidizing
- Explosive limits
- Not applicable
10.1 — Reactivity
- Reactivity
- Stable under normal conditions.
10.2 — Chemical stability
- Chemical stability
- Stable under recommended storage conditions.
10.3 — Possibility of hazardous reactions
- Possibility of hazardous reactions
- Decomposes on heating at 288 °C, on burning and on contact with strong acids. This produces toxic fumes including nitrogen oxides and sulfur oxides. Reacts violently with strong bases.
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.
10.6 — Hazardous decomposition products
- Hazardous decomposition products
- When heated to decomposition it emits toxic vapors of nitrogen oxides and sulfur oxides.
11.1 — Information on toxicological effects
- Acute toxicity
- LD50 Mouse oral >6400 mg/kg bw; LD50 Rat iv 6000 mg/kg bw; LD50 Mouse ip ca 6000 mg/kg bw
- Skin corrosion/irritation
- H315: Causes skin irritation
- Serious eye damage/irritation
- H319: Causes serious eye irritation
- 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)
- Not assigned
- UN-No. (IMDG)
- Not assigned
- UN-No. (IATA)
- Not assigned
- UN-No. (ADN)
- Not assigned
- UN-No. (RID)
- Not assigned
14.2 — UN proper shipping name
- Proper Shipping Name (ADR)
- Not classified as dangerous goods
- Proper Shipping Name (IMDG)
- Not classified as dangerous goods
- Proper Shipping Name (IATA)
- Not classified as dangerous goods
- Proper Shipping Name (ADN)
- Not classified as dangerous goods
- Proper Shipping Name (RID)
- Not classified as dangerous goods
14.3 — Transport hazard class(es)
- Transport hazard class(es)
- Not applicable
14.4 — Packing group
- Packing group (ADR)
- Not applicable
- Packing group (IMDG)
- Not applicable
- Packing group (IATA)
- Not applicable
- Packing group (ADN)
- Not applicable
- Packing group (RID)
- Not applicable
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
SULPHANILIC ACID is widely used in analytical chemistry, particularly in colorimetric methods for the determination of nitrite and nitrate levels in various samples, including water and food products. It serves as a reagent in the diazotization reaction, which is crucial for the development of azo dyes. Additionally, it finds applications in the pharmaceutical industry for the synthesis of various drugs and in the production of dyes and pigments. Its role in environmental monitoring and quality control in laboratories makes it an essential chemical in both academic and industrial settings.
ISO 9001
ISO 14001
GMP
COA with every batch
- Batch Number
- AL-2026-AL1486A
- Manufacturing Date
- September-2026
- Expiry Date
- September-2031
- Molecular Weight
- 173.19 g/mol
| Test | Standard | Observed |
|---|---|---|
| Purity | 99% min | 99.5% |
| Melting Point | 165-168 °C | 166 °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% | m.p. 288 °C decomposes without melting | <0.5% | <0.1% | None detected | Insoluble in ethanol and ether |
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“Completely satisfied with the products and services.”
“From ordering to shipping, every course of action was smooth. Timely delivery.”
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“Speedy delivery, professional staff.”
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