Suzhou Pharmaceutical Technology Co., Ltd. (China) supplies Cyclosporine A API CAS 59865-13-3 for pharmaceutical B2B procurement — COA, MSDS, and technical documentation available on request.
> Cyclosporine A API — Overview
Cyclosporine A (CAS: 59865-13-3, also known as Cyclosporin A, ciclosporina A, cyclosporine, Sandimmune active ingredient, and Neoral active ingredient) is an immunosuppressant API used in formulation, analytical-development, and research programs where local regulations permit. Suzhou Pharmaceutical Technology Co., Ltd. supplies Cyclosporine A API in controlled small-batch and bulk quantities from Suzhou, China, with export to South America, Australia, New Zealand, Mexico, Canada, and worldwide markets. Export documentation: COA and MSDS standard for all orders.
| Product Name | Cyclosporine A |
| Structural Formula |  |
| Alias | Cyclosporin A; Ciclosporina A; Cyclosporine; Sandimmune active ingredient; Neoral active ingredient |
| CAS Number | 59865-13-3 |
| Molecular Formula | C62H111N11O12 |
| Molecular Weight | 1202.6 g/mol |
| Purity | Available by agreed HPLC specification |
| Appearance | White to off-white powder |
| Storage | Store sealed, protected from moisture and strong light |
> Applications
Cyclosporine A is used by pharmaceutical and research organizations developing immunosuppressant formulations, ophthalmic formulation platforms, reference methods, and impurity-control strategies. API supply is intended for qualified buyers who will confirm dosage form, assay method, impurity limits, formulation route, and finished-dose registration obligations in their own markets.
Immunosuppressant and ophthalmic formulation research
A 2000 Ophthalmology journal article reported two multicenter randomized studies evaluating cyclosporine ophthalmic emulsion (Ophthalmology, doi:10.1016/S0161-6420(99)00176-1, n=877). This supports the need for carefully controlled Cyclosporine A API quality in immunosuppressant, ophthalmic, and analytical-development programs.
Analytical and impurity-control development
Buyers typically evaluate assay, related substances, residual solvents, water content, identity, microbiological controls, and stability behavior before moving from sample quantities to pilot or commercial batches. We supply API only, not finished capsules, oral solutions, ophthalmic emulsions, injectable concentrates, compounded products, or branded medicines.
> Sourcing & Supply
Suzhou Pharmaceutical Technology Co., Ltd. is an R&D-driven pharmaceutical company with in-house synthesis and analytical capability for Cyclosporine A API. Small batches (up to 10 kg) are produced directly by our technical team in Suzhou. For larger commercial quantities, production is scaled up at qualified manufacturing facilities, with export documentation provided according to the order scope.
- Small-batch orders (≤10 kg): prepared by our technical team in Suzhou. Lead time 10–14 business days from order confirmation.
- Commercial bulk (>10 kg): scaled up at qualified manufacturing facilities. Lead time 14–21 business days depending on batch size and documentation.
We export Cyclosporine A API to buyers across South America — including Brazil, Argentina, Colombia, Chile, Peru, Ecuador, Bolivia, Paraguay, and Uruguay — as well as to Australia, New Zealand, Mexico, and Canada. Inquiries from European, Middle Eastern, and Asian markets are also welcome.
> Quality & Export Documentation
All Cyclosporine A shipments are accompanied by a Certificate of Analysis (COA) confirming identity, appearance, assay, and related substances against batch specification. Purity is tested by HPLC against an authenticated reference standard. MSDS is provided for all orders, and Certificate of Origin (COO) is available for commercial bulk shipments.
| Order size | Documentation included |
| ≤10 kg (small-batch / research) | COA + MSDS |
| >10 kg (commercial bulk) | COA + MSDS + COO |
> Packaging & Logistics
- 100 g, 500 g: double-layered aluminium foil bag, heat-sealed
- 1 kg: aluminium foil bag inside kraft paper box
- 5 kg, 10 kg: aluminium foil bag inside fibre drum
- >10 kg: packaging agreed according to commercial order requirements
Cyclosporine A API is shipped with moisture-protective packaging and batch labels matched to the COA. Shipping options include express courier for samples, air freight for kilogram orders, and sea freight for larger commercial shipments where timing allows.
> Pricing & Supply
Cyclosporine A pricing is provided on request. We do not publish list prices because the final quote depends on order quantity, purity requirement, documentation needs, shipping destination, and current raw material costs.
- MOQ: 100 g for qualified buyers
- Sample policy: 10–50 g samples available for analytical confirmation
- Bulk discount tiers apply at 500 g, 1 kg, 5 kg, and 10 kg
- Payment: T/T (bank transfer). 100% in advance for standard orders. Terms for larger repeat orders by arrangement.
> Frequently Asked Questions
What is the minimum order quantity for Cyclosporine A API?
The minimum order quantity for Cyclosporine A API is 100 grams. Sample quantities of 10–50 g are available for qualified buyers.
What documents are included with a Cyclosporine A bulk order?
All Cyclosporine A orders include a COA and MSDS in English. For commercial bulk orders above 10 kg, COO is available as standard export documentation.
Can I request a Cyclosporine A sample before placing a bulk order?
Yes. Sample quantities of 10–50 g are available for qualified buyers before pilot or commercial orders.
Do you export Cyclosporine A API to South America?
Yes. We support inquiries from Brazil, Argentina, Colombia, Chile, Peru, Ecuador, Bolivia, Paraguay, and Uruguay.
Can buyers in Australia, New Zealand, Mexico, or Canada order Ciclosporina A?
Yes. We supply Cyclosporine A API to buyers in Australia, New Zealand, Mexico, and Canada. COA and MSDS are included with all orders.
What is Cyclosporine A used for?
Cyclosporine A is an immunosuppressant API used in formulation, analytical-development, and research programs where local regulations allow.
Is Neoral active ingredient the same as Cyclosporine A?
Yes. Neoral active ingredient is a commercial-context synonym for Cyclosporine A; we supply API, not branded finished medicine.
What specification is available for Cyclosporine A CAS 59865-13-3?
Cyclosporine A is supplied by agreed HPLC specification, including assay, related substances, residual solvents, water content, identity, and microbiological controls when required.
How is Cyclosporine A packaged and shipped internationally?
Cyclosporine A API is shipped in foil bags or foil-lined fibre drums with protection from moisture and strong light during international transit.
Do you supply finished Cyclosporine A capsules or ophthalmic emulsions?
No. We supply Cyclosporine A API, not finished capsules, oral solutions, ophthalmic emulsions, injectable concentrates, compounded products, or branded medicines.
> Related Products
- Tacrolimus | CAS 104987-11-3 — immunosuppressant API
- Clomipramine | CAS 303-49-1 — neurological API
- Gabapentin | CAS 60142-96-3 — neurological API
- Omeprazole | CAS 73590-58-6 — proton pump inhibitor API
> Request a Quote or Sample
To request a quote or sample for Cyclosporine A API (CAS 59865-13-3), please contact us directly at Info@fmyykj.com.
Include in your inquiry: required quantity (grams or kg), destination country, documentation requirements (COA + MSDS standard; COO for bulk), and intended use (formulation / analytical development / research / other). We respond to all inquiries within 1 business day.
Last reviewed: June 2026