DL-Tryptophan
- CAS Number
- 54-12-6
- HSN Code
- 29339990
- Molecular Formula
- C11H12N2O2
- Catalogue Number
- AL1547B
- Purity
- ≥ 99%
- Molecular Weight
- 204.23 g/mol
Complies with : IP | BP | USP | EP | ACS
ISO 9001
ISO 14001
GMP
COA with every batch
Key Properties
DL-Tryptophan is the racemic form of the essential amino acid tryptophan, which is crucial for protein synthesis and serves as a precursor for several important biomolecules, including serotonin and melatonin. This compound is widely utilized in biochemistry as a reference standard due to its well-characterized properties and significance in metabolic studies. With a high purity of 99%, it is suitable for various analytical applications, ensuring reliable results in research and quality control. The compound is also recognized for its role in nutritional supplements and its potential therapeutic effects in mood regulation and sleep enhancement.
Also known as L-Tryptophan, D-Tryptophan.
- Catalogue No.
- AL1547B
- CAS Number
- 54-12-6
- Molecular Formula
- C11H12N2O2
- Molecular Weight
- 204.23 g/mol
- HSN Code
- 29339990
- Grade
- 99%
- Product Form
- Substance
DL-Tryptophan appears as a white to pale tan crystalline powder. It has a melting point of approximately 288 °C (550 °F) and is slightly soluble in water, with a solubility of about 1 g in 100 mL at room temperature. The compound has a density of approximately 1.4 g/cm³. It is stable under normal conditions but should be stored in a cool, dry place away from light to maintain its integrity. The compound has a characteristic odor, which is faint and not overpowering, typical of amino acids.
- Appearance
- White to pale tan crystalline powder
- Shelf Life
- 2 years
- Packaging
- Available in 100 g and 500 g containers
- Storage
- Store in a cool, dry place, protected from light.
1.1 — Product identifier
- Chemical Name
- DL-Tryptophan
- Catalogue No.
- AL1547B
- Product form
- Substance
- CAS Number
- 54-12-6
- EC Number
- 218-200-0
- Grade
- 99%
- EC Index Number
- Not applicable
- Chemical Formula
- C11H12N2O2
- HSN Code
- 29339990
- Synonyms
- L-Tryptophan, D-Tryptophan
1.2 — Relevant identified uses of the substance or mixture and uses advised against
- Use of the substance/mixture
- Biochemical reference compound
- 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
- None identified
3.1 — Substance
- Name
- DL-Tryptophan
- CAS No.
- 54-12-6
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. 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
- May cause mild irritation to skin and eyes.
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
- Combustible material; may produce toxic fumes when burned.
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. Dispose of in accordance with local regulations.
6.3 — Methods and material for containment and cleaning up
- Methods for cleaning up
- Use appropriate personal protective equipment. Sweep up and place in a suitable container for disposal.
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 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
- Not required under normal conditions; use in well-ventilated areas.
9.1 — Information on basic physical and chemical properties
- Physical state
- Solid
- Colour
- White to pale tan
- Odour
- Faint
- Odour threshold
- Not applicable
- pH value
- Not applicable
- Relative evaporation rate (butylacetate=1)
- Not applicable
- Melting point
- 288 °C
- Freezing point
- Not applicable
- Boiling point
- Not applicable
- Flash point
- Not applicable
- Auto-ignition temperature
- Not applicable
- Decomposition temperature
- Not applicable
- Flammability (solid, gas)
- Combustible
- Vapour pressure
- Not applicable
- Relative vapour density at 20°C
- Not applicable
- Density
- 1.4 g/cm³
- Solubility
- Slightly soluble in water (1 g in 100 mL)
- Log Pow
- Not applicable
- 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; 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 oxidizers, acids, and bases.
10.6 — Hazardous decomposition products
- Hazardous decomposition products
- Not specified
11.1 — Information on toxicological effects
- Acute toxicity
- LD50 (oral, rat) > 5000 mg/kg; considered low toxicity.
- Skin corrosion/irritation
- May cause mild irritation.
- Serious eye damage/irritation
- May cause mild irritation.
- Respiratory or skin sensitisation
- Not a sensitizer.
- Germ cell mutagenicity
- Not classified
- Carcinogenicity
- Not classified
- Specific target organ toxicity (single exposure)
- Not classified as a specific target organ toxicant.
- 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)
- 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
DL-Tryptophan is primarily used as a reference standard in amino acid metabolism studies and analytical chemistry research, where it aids in the calibration of analytical instruments and methods. It is also employed in the pharmaceutical industry for the formulation of dietary supplements aimed at improving mood and sleep quality. Additionally, DL-Tryptophan is utilized in animal feed to enhance growth and health in livestock. Its role in the synthesis of neurotransmitters makes it a subject of interest in neurobiology and psychological research.
ISO 9001
ISO 14001
GMP
COA with every batch
- Batch Number
- AL-2026-AL1547B
- Manufacturing Date
- September-2026
- Expiry Date
- September-2031
- Molecular Weight
- 204.23 g/mol
| Test | Standard | Observed |
|---|---|---|
| Assay | ≥ 99% | 99.5% |
| Moisture Content | ≤ 0.5% | 0.3% |
| Residue on Ignition | ≤ 0.1% | 0.05% |
| Related Substances | None detected | None detected |
| Solubility | Slightly soluble in water | Slightly soluble in 100 mL water |
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% | 288 °C | ≤ 0.5% | ≤ 0.1% | None detected | Slightly soluble in water |
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