Fexo Base Fexofenadine (Freebase) also known as Fexo-Base, is an advanced pharmaceutical intermediate with the CAS number 83799-24-0. It is the key intermediate in the synthesis of Fexofenadine Hydrochloride, a widely used second-generation antihistamine known for its non-sedative properties. SUN-VIIA plays a critical role in ensuring the efficacy and purity of the final active pharmaceutical ingredient (API), particularly in antihistamine formulations. Its high chemical stability and compliance with GMP manufacturing standards make it an essential component for leading pharmaceutical companies involved in allergy treatment formulations.
Fexo Base Fexofenadine (Freebase) also known as Fexo-Base, is an advanced pharmaceutical intermediate with the CAS number 83799-24-0. It is the key intermediate in the synthesis of Fexofenadine Hydrochloride, a widely used second-generation antihistamine known for its non-sedative properties. SUN-VIIA plays a critical role in ensuring the efficacy and purity of the final active pharmaceutical ingredient (API), particularly in antihistamine formulations. Its high chemical stability and compliance with GMP manufacturing standards make it an essential component for leading pharmaceutical companies involved in allergy treatment formulations.
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Pharmaceutical
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Pharmaceutical Actives & Precursors
Intermediates & Precursors
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Chemical Properties & Specifications
H302: Harmful if swallowed H315: Causes skin irritation H319: Causes serious eye irritation H332: Harmful if inhaled
P261: Avoid breathing dust/fume/gas/mist/vapors/spray P280: Wear protective gloves/protective clothing/eye protection/face protection P304 + P340: IF INHALED: Remove person to fresh air and keep comfortable for breathing
Inhalation: Move the person to fresh air. Seek medical attention if symptoms persist. Skin Contact: Wash affected area with soap and water. Seek medical advice if irritation persists. Eye Contact: Rinse immediately with water for at least 15 minutes. Seek medical advice if symptoms persist. Ingestion: Do not induce vomiting. Seek medical attention immediately.
Acute toxicity, oral (Category 4) Skin irritation (Category 2) Eye irritation (Category 2A) Storage Class Code: 6.1B - Harmful substance, not a primary fire risk
Primary active pharmaceutical ingredient (API) in antihistamine formulations.
Used in the manufacture of non-sedating antihistamines, effective for treating seasonal allergic rhinitis, chronic urticaria, and other allergic reactions.
Key API in the production of generic versions of antihistamines in oral solid dosage forms like tablets and capsules.
Sometimes formulated with other decongestants or anti-allergic agents to enhance therapeutic efficacy.
Store at 20–25°C (68–77°F)
Available in blister packs, bottles, and bulk packaging for pharmaceutical formulations.
