
Pharmaceutical-grade Cyclopentolate Hydrochloride (CAS 5870-29-1), 98–102%, supplied wholesale by Zyntex to licensed ophthalmic producers. Antimuscarinic API for diagnostic pupil-dilating and cycloplegic eye drops. CoA and SDS.
Cyclopentolate hydrochloride (C17H25NO3·HCl) is a white crystalline powder that is very soluble in water. It melts at about 137–141°C.
Ophthalmic producers use it in eye drops that dilate the pupil and temporarily paralyze focusing (cycloplegia), which is needed to measure refractive errors accurately, especially in children. Its effect lasts longer than that of Tropicamide but much shorter than atropine. It is often combined with Phenylephrine Hydrochloride for stronger dilation.
Eye drops must be sterile, so producers need API with controlled microbial quality. Zyntex supplies cyclopentolate hydrochloride only to licensed pharmaceutical companies.
Main application areas:
👁️ Diagnostic Eye Drops
API for pupil-dilating and cycloplegic drops.
👶 Pediatric Ophthalmology
API for refraction examinations in children.
🔗 Combination Drops
Combined with phenylephrine.
🐾 Veterinary Ophthalmology
API for veterinary eye drops.
| Parameter | Standard Value |
|---|---|
| Product Name | Cyclopentolate Hydrochloride |
| CAS Number | 5870-29-1 |
| Molecular Formula / Weight | C17H25NO3·HCl / 327.85 g/mol |
| Assay / Purity (HPLC) | 98.0% to 102.0% (Dry Basis) |
| Appearance | White crystalline powder |
| Melting Point | 137°C to 141°C |
| Solubility | Very soluble in water; freely soluble in alcohol; insoluble in ether |
| Documents | CoA and SDS with every lot |
⚠️ Safety & Handling: Potent pharmacologically active substance; toxic if swallowed. Avoid inhalation of dust and contact with skin and eyes; wear gloves, eye protection and dust protection. Store in tightly closed, light-resistant containers in a cool, dry place. Always consult the Safety Data Sheet (SDS) for full classification and handling instructions.
What is the difference between cyclopentolate and tropicamide?
Both dilate the pupil, but cyclopentolate has a stronger effect on focusing and lasts longer, which makes it preferred for refraction tests in children.
Who can purchase this API?
It is supplied only to licensed pharmaceutical companies producing ophthalmic products.
How can I get a price and documents?
Prices depend on quantity, packaging and destination. Contact us with your required volume to receive a quotation together with the CoA and SDS.