Chloropheniramine Maleate
Chloropheniramine Maleate is a first-generation alkylamine antihistamine used primarily to relieve allergy symptoms by blocking H1 histamine receptors. It appears as a white or off-white crystalline powder, freely soluble in water and alcohol. Known for rapid onset and moderate duration of action, it’s widely formulated in pharmaceuticals. It also exhibits mild anticholinergic and sedative effects.
Chloropheniramine Maleate
Primary Uses
- Pharmaceuticals
- Active ingredient in oral tablets, capsules, and syrups for treatment of:
- Allergic rhinitis (hay fever)
- Urticaria (hives)
- Allergic conjunctivitis
- Anaphylaxis adjunct therapy
- Common cold symptom relief (sneezing, runny nose)
- Used in combination cold, flu, and allergy medications with decongestants, analgesics, and cough suppressants.
- Injectable forms used for rapid allergy symptom relief in emergency or clinical settings.
- Veterinary Medicine
- Treatment of pruritus and allergic reactions in animals including dogs and cats.
- Pharmacology & Toxicology Research
- Widely used in lab research to study histamine H1 receptor antagonism and allergy mechanisms.
Secondary Uses
- Cosmetics & Topical Preparations
- Incorporated in anti-itch creams, lotions, or gels for localized relief of itching and allergic skin reactions (limited use due to systemic absorption concerns).
- Over-the-Counter (OTC) Products
- Included in OTC antihistamine formulations targeting mild allergy symptoms and seasonal hay fever relief.
- Formulation Studies
- Used by pharmaceutical companies in drug formulation development for evaluating bioavailability, stability, and efficacy of antihistamines.
- Analytical Reference Standard
- Employed in quality control laboratories as a reference standard to verify purity and potency of antihistamine drugs.
1. Basic Identification Attributes
- Chemical Name (IUPAC): 3-(4-chlorophenyl)-N,N-dimethyl-3-pyridin-2-yl-propan-1-amine maleate
- Common/Trade Name: Chlorpheniramine Maleate
- CAS Number: 132-22-9
- HS Code: 2933.69.90
- Molecular Formula: C16H19ClN2 · C4H4O4
- Synonyms: CPM, Chlorphenamine Maleate
2. Physical & Chemical Properties
- Physical State: White or off-white crystalline powder
- Melting Point: 125–130°C
- Solubility: Freely soluble in water and ethanol; slightly soluble in chloroform and ether
- Stability: Stable under normal conditions; sensitive to light and moisture
3. Safety & Hazard Attributes
- Hazard Class (GHS): Harmful if swallowed; may cause drowsiness or dizziness
- NFPA Ratings: Health 2, Flammability 1, Reactivity 0
- Exposure Limits: No specific limits; dust exposure to be minimized
- Toxicity: Moderate toxicity; overdose can cause anticholinergic effects and CNS depression
4. Storage & Handling Attributes
- Store in cool, dry, dark place; use airtight containers
- Shelf life: 3–5 years
- Use PPE to avoid inhalation and skin contact
5. Regulatory & Compliance Attributes
- Included in USP, BP, EP
- FDA approved as antihistamine active pharmaceutical ingredient
- Registered under REACH and other international regulations
6. Environmental & Health Impact
- Low ecotoxicity; biodegradable; low bioaccumulation potential
- Not classified as carcinogenic or mutagenic
Safety Handling Precautions
- Wear gloves, dust masks, goggles
- Avoid inhalation, skin and eye contact
- Use in well-ventilated areas
First Aid Measures
- Inhalation: Fresh air, medical attention if symptoms persist
- Skin: Wash with soap and water, seek care if irritated
- Eyes: Flush with water, seek medical help if needed
- Ingestion: Do not induce vomiting, seek urgent medical attention
Firefighting Measures
- Combustible; use dry chemical, foam, CO₂
- Wear full protective gear
- Avoid inhalation of combustion products (HCl, nitrogen oxides)
Related products
Cetirizine Dihydrochloride
Cetirizine Dihydrochloride is a second-generation antihistamine widely used to relieve allergy symptoms such as hay fever, urticaria (hives), and other allergic conditions. It is the dihydrochloride salt form of cetirizine, presenting as a white to off-white crystalline powder that is odorless or nearly odorless and slightly bitter in taste. Cetirizine Dihydrochloride acts as a selective antagonist of peripheral H1 histamine receptors, preventing the effects of histamine and thereby reducing allergic symptoms without causing significant sedation. It is a commonly prescribed active pharmaceutical ingredient (API) in oral tablets, syrups, and capsules.
Chlorpheniramine Maleate
Chlorpheniramine Maleate is a first-generation alkylamine antihistamine used primarily to relieve allergy symptoms by blocking H1 histamine receptors. It appears as a white or off-white crystalline powder, freely soluble in water and alcohol. Known for rapid onset and moderate duration of action, it’s widely formulated in pharmaceuticals. It also exhibits mild anticholinergic and sedative effects.
Diphenhydramine HCL BP
Diphenhydramine HCL BP is a first-generation antihistamine with potent anticholinergic, sedative, and antiemetic properties. It is commonly used to relieve symptoms associated with allergies, hay fever, the common cold, and motion sickness. Diphenhydramine HCL is a white crystalline powder, highly soluble in water, making it suitable for oral, topical, and injectable pharmaceutical formulations. Due to its ability to cross the blood-brain barrier, it causes sedation and is often used as a sleep aid and for managing Parkinson’s disease symptoms.
Doxycycline Hyclate BP
Doxycycline Hyclate BP is a broad-spectrum, semisynthetic tetracycline-class antibiotic available as the hemihydrate salt form of doxycycline. It is widely used in pharmaceutical formulations due to its high bioavailability, broad antibacterial activity, and favorable pharmacokinetic profile. The compound exhibits bacteriostatic action by inhibiting protein synthesis in susceptible bacteria, making it effective against a wide range of Gram-positive and Gram-negative organisms as well as atypical pathogens. It is typically supplied as a fine, white to off-white crystalline powder soluble in water and suitable for oral and parenteral dosage forms.
Guaiphenesin BP
Guaiphenesin BP is a white crystalline powder or granules with a faint characteristic odor, classified as an expectorant used primarily in pharmaceutical formulations to relieve chest congestion. It works by loosening and thinning mucus in the airways, making it easier to cough up and clear from the respiratory tract. It is widely utilized in cough syrups, tablets, and cold remedies. Recognized for its mucolytic and muscle-relaxant properties, Guaiphenesin is included in both prescription and over-the-counter medications worldwide.
Hydrocortisone Base BP 93 Micro
Hydrocortisone Base BP 93 Micro is a highly purified, micronized form of hydrocortisone base compliant with British Pharmacopoeia (BP) standards. It is a white to off-white fine powder designed for enhanced solubility and bioavailability in pharmaceutical formulations. As a corticosteroid hormone analog, it exhibits potent anti-inflammatory, immunosuppressive, and anti-allergic activities. The micronized particle size (~93 microns) facilitates improved dispersion in topical, injectable, and oral dosage forms.
Levamisole Hcl BP2000
Levamisole Hcl BP2000 is a white to off-white crystalline powder, soluble in water, with anthelmintic and immunomodulatory properties. It is primarily used as a veterinary antiparasitic agent effective against gastrointestinal nematodes in livestock. Levamisole HCL BP2000 conforms to British Pharmacopoeia standards, ensuring high purity and quality for pharmaceutical and veterinary formulations. Beyond veterinary uses, it is also researched for immunostimulant properties in medical applications.
Lidocaine HCL BP
Lidocaine HCL BP is a white crystalline powder or granules that are highly soluble in water. It is a local anesthetic and antiarrhythmic agent widely used in medical and dental fields. Lidocaine HCL BP acts by blocking nerve signal transmission, providing rapid and effective numbing of targeted areas. It conforms to British Pharmacopoeia (BP) standards, ensuring pharmaceutical-grade purity and consistency. It is commonly formulated into injections, topical gels, creams, and patches for pain relief and arrhythmia treatment.

Preservatives(food)
Flavor Enhancers
Acidulants
Sweeteners
Antioxidants
Colorants(food)
Nutraceutical Ingredients (food)
Nutrient Supplements
Emulsifiers
Collectors
Dust Suppressants
Explosives and Blasting Agents
Flocculants and Coagulants
Frothers
Leaching Agents
pH Modifiers
Precious Metal Extraction Agents
Antioxidants(plastic)
Colorants (Pigments, Dyes)
Fillers and Reinforcements
Flame Retardants
Monomers
Plasticizers
Polymerization Initiators
Stabilizers (UV, Heat)
Antifoaming Agents
Chelating Agents
Coagulants and Flocculants
Corrosion Inhibitors
Disinfectants and Biocides
Oxidizing Agents
pH Adjusters
Scale Inhibitors( water)
Antioxidants(cosmetic)
Emollients
Fragrances and Essential Oils
Humectants
Preservatives
Surfactants(cosmetic)
Thickeners
UV Filters
Fertilizers
Soil Conditioners
Plant Growth Regulators
Animal Feed Additives
Biostimulants
Pesticides (Herbicides, Insecticides, Fungicides)
Active Pharmaceutical Ingredients (APIs)
Excipients
Solvents(pharmaceutical)
Antibiotics
Antiseptics and Disinfectants
Vaccine Adjuvants
Nutraceutical Ingredients (pharmaceutical)
Analgesics & Antipyretics
Analytical Reagents
Solvents(lab)
Chromatography Chemicals
Spectroscopy Reagents
microbiology-and-cell-culture-reagents
Molecular Biology Reagents
Biochemical Reagents
Inorganic and Organic Standards
Laboratory Safety Chemicals
Specialty Laboratory Chemicals(Special Laboratory Equipment)
Demulsifiers
Hydraulic Fracturing Fluids
Scale Inhibitors(oil)
Surfactants(oil)
Drilling Fluids
Dyes and Pigments
Bleaching Agents
Softening Agents
Finishing Agents
Antistatic Agents
Admixtures
Waterproofing Agents
Sealants and Adhesives
Curing Compounds
Concrete Repair Chemicals
Anti-Corrosion Coatings
Surfactants(cleaning)
Builders
Enzymes
Solvents (Cleaning)
Fragrances
Electronic Chemicals
Catalysts
Lubricants
Photographic Chemicals
Refrigerants
Automotive chemicals
Pyrotechnic Chemicals
Biodegradable Surfactants
Bio-based Solvents
Renewable Polymers
Carbon Capture Chemicals
Wastewater Treatment Chemicals
Pigments
Solvents(paint)
Specialty Coatings
Binders/Resins
Additives
Driers
Anti-Corrosion Agents
Functional Coatings
Application-Specific Coatings
Leavening Agents
Dough Conditioners
Flour Treatments
Fat Replacers
Decoratives
Preservatives(baking)
Plasticizers & Softeners
Reinforcing Agents
Adhesion Promoters
Vulcanizing Agents
Antidegradants
Blowing Agents
Fillers & Extenders
Accelerators & Retarders