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Substance: Duloxetine Hydrochloride Reference Standard
Chemical Name: (+)-(S)-N-methyl-gamma-(1-naphthyloxy)-2-thiophenepropylamine hydrochloride
CAS Number: 136434-34-9
Molecular Formula: C18H19NOS•HCl
Appearance: White to off-white powder
Common Use: Analytical reference for pharmaceutical laboratories developing and validating assay methods; not intended for therapeutic use
Classification: Potentially harmful if ingested, inhaled, or absorbed through skin; irritant to eyes, skin, and respiratory tract
Hazard Statement: Exposure can result in symptoms ranging from mild irritation to effects on nervous system; large-scale inhalation or ingestion could lead to more severe reactions
Pictograms: Exclamation mark for acute toxicity/irritation
Route of Entry: Inhalation, ingestion, dermal contact
Symptoms: Headache, drowsiness, nausea, allergic skin reactions; rarely, serotonin effects with large or repeated exposure
Active Ingredient: Duloxetine Hydrochloride (purity typically above 98%)
Impurities: Trace process-related organic compounds, all at minimal levels consistent with reference standard requirements
Additives or Fillers: None; supplied neat without excipients or bulking agents
Inhalation: Move individual to fresh air; monitor respiratory function and provide oxygen if lab staff display breathing difficulty
Skin Contact: Remove contaminated clothing; wash exposed area with soap and water; seek medical attention for rash or irritation
Eye Contact: Flush eyes with plenty of water for at least 15 minutes; monitor for ongoing irritation
Ingestion: Rinse mouth with water; never induce vomiting; consult poison control and seek immediate medical evaluation for symptomatic cases
Suitable Extinguishing Media: Use foam, carbon dioxide, or dry chemical extinguishers; avoid water jets
Hazardous Combustion Products: Releases nitrogen, sulfur oxides, carbon monoxide, and hydrogen chloride fumes
Protective Equipment: Firefighters use self-contained breathing apparatus and full personal protective gear
Risks: Dust can ignite in air; keep containers tightly sealed and stored away from combustion sources
Personal Precautions: Don protective gloves, lab coat, and dust mask before cleanup
Containment: Avoid spreading dust; sweep up with damp cloth or HEPA vacuum
Cleanup: Place residue in sealable containers intended for hazardous chemical waste; avoid washing down drains
Ventilation: Work in well-ventilated areas or certified chemical fume hoods during cleanup and transfer
Handling: Minimize dust generation; always use in ventilated work areas; avoid skin or eye exposure
Storage: Store in cool, dry, and well-ventilated spaces, away from heat or sunlight; secure in tightly closed containers; restrict access to trained personnel
Incompatibles: Keep away from strong oxidizing agents, moisture, and sources of ignition
Exposure Limits: No established occupational exposure limit, but minimize exposure as with most pharmaceutical reference compounds
Engineering Controls: Certified chemical fume hoods, local exhaust ventilation, and filtered enclosures
Personal Protection: Wear disposable gloves, eye protection, laboratory coat, and use disposable respirator when risk of dust exposure arises
Hygiene Measures: Wash hands and forearms after handling; do not eat, drink, or smoke in chemical work areas
Appearance: White to off-white crystalline powder
Solubility: Moderately soluble in water, ethanol, and methanol; less soluble in non-polar solvents
Molecular Weight: Approximately 333 g/mol
Melting Point: Ranges from 164°C to 166°C
Odor: Odorless or faint organic scent
pH (aqueous solution): Slightly acidic to neutral
Boiling Point: Not applicable (decomposes on heating)
Chemical Stability: Stable under normal laboratory conditions if kept sealed, dry, and cool
Decomposition: Exposed to heat or light, degrades producing oxides of carbon, nitrogen, sulfur, and hydrochloric acid fumes
Reactivity: Avoid mixing with oxidizers and acids; susceptible to hydrolysis in presence of dampness
Polymerization: Not known to undergo hazardous polymerization events
Acute Toxicity: May cause moderate irritation by inhalation or contact; oral exposure could produce effects typical of pharmaceutical doses (nausea, headache, CNS symptoms) at much higher amounts
Chronic Effects: Frequent or repeated exposure not studied in lab personnel; theoretical risk based on chronic overdose in clinical use literature
Carcinogenicity: Not listed as a suspected carcinogen by IARC, NTP, or OSHA
Allergic Reactions: Rare hypersensitivity with skin contact or inhalation, including rash or respiratory symptoms
Aquatic Toxicity: Active pharmaceutical ingredients like duloxetine may exhibit toxicity to aquatic organisms if released in significant amounts
Persistence and Degradability: Expected to be moderately persistent due to stable molecular structure; slow biodegradation
Bioaccumulation: No direct evidence for significant bioaccumulation, but assess risk if discharging into water systems
Precautions: Laboratory waste should never be disposed of in municipal water systems or regular trash
Waste Handling: Collect unused reference compounds and materials contaminated with the substance for hazardous chemical waste disposal
Disposal Method: Incinerate at licensed chemical waste facility; avoid landfill or sewer disposal
Packaging: Use leak-proof, sealed containers labeled with appropriate hazard identification before transfer to waste handler
UN Classification: Not classified as dangerous for transport by small scientific quantities, but handle as hazardous if shipping larger volumes
Transport Precautions: Pack in durable containers, protect from rough handling, temperature extremes, moisture, and incompatible materials
Lab Shipping Labels: Mark secondary packages with hazard warnings per local and international regulations
National and International Status: Not scheduled as a controlled substance or precursor by major regulatory bodies when possessed under license for research
Workplace Controls: Covered by occupational health and lab safety regulations requiring risk assessment and access restriction
Waste Regulations: Disposal governed by hazardous chemical rules on both site and national levels, regardless of quantity
Recordkeeping: Laboratories maintain inventory, use logs, and incident reporting to support safe stewardship and compliance
