Mupirocin EP Impurity A

The topical antibacterial mupirocin, produced by fermentation and used mainly against staphylococcal skin and nasal carriage, has a defined set of related substances, of which Mupirocin EP Impurity A is one. The compound is a pale brown oil with the formula C26H44O10 and a molecular weight of 516.62, and its physical form makes careful handling and cold storage especially important. Quality control laboratories use it for related-substance method development, for identification of impurity peaks in mupirocin drug substance, and for quantitative calibration where a defined reference is required. Because the material is an oil, weighing by mass rather than volume and preparing solutions immediately before use is common practice. Storage at -80°C ± 5°C is specified, and shipments are made with dry ice. Pack sizes listed include 10 mg, 15 mg, 20 mg, 25 mg, 30 mg, 50 mg, 100 mg, 200 mg, 260 mg and 300 mg. Request a quotation or the documentation package for your application.
Also known as
Pseudomonic acid B; Pseudomonic acid I; A42J20737I; Mupirocin EP Impurity A; MUPIROCIN IMPURITY A; MUPIROCIN CALCIUM IMPURITY A. Further pharmacopoeial and trivial names are recorded on the certificate of analysis.
Pack sizes and lead time
| Pack size | Availability | Quote |
|---|---|---|
| 10 mg | In stock | |
| 15 mg | In stock | |
| 20 mg | In stock | |
| 25 mg | In stock | |
| 30 mg | In stock | |
| 50 mg | In stock | |
| 100 mg | In stock | |
| 200 mg | 15 days | |
| 260 mg | On request | |
| 300 mg | On request |
What the documents contain
- Certificate of analysis — issued per lot: catalogue and lot number, the value assigned to the material and the analytical basis for it.
- Safety data sheet — supplied for the catalogue item, and the basis for the transport classification used on the shipment.
- Storage and shipping conditions for this item: -80℃±5℃, Shipping with Dry Ice.
Frequently asked questions
Is a certificate of analysis (COA) available for Mupirocin EP Impurity A?
Yes. A batch-specific COA and the MSDS are issued for every lot of Mupirocin EP Impurity A (catalogue number C4X-17061). Use the COA link on this page, or email [email protected] with the lot number printed on your label and we will send the matching document.
What pack sizes and lead times are offered?
Pack sizes 10 mg, 15 mg, 20 mg, 25 mg, 30 mg, 50 mg, 100 mg are held in stock and typically ship within 1–2 working days Other sizes (200 mg) are quoted with a lead time of approximately 15 days.
How is the purity of Mupirocin EP Impurity A documented?
Purity is determined per batch and stated on the COA together with the analytical data used for its assignment. If your method requires a specific grade or a particular pharmacopoeial naming, tell us the requirement when you enquire and we will confirm suitability.
Can you supply a larger quantity or a custom synthesis?
Yes. Quantities above the listed pack sizes are quoted on request, and custom synthesis or isolation from related starting materials can be discussed for compounds not held in stock. Contact [email protected] with the target quantity and required delivery date.
How is Mupirocin EP Impurity A shipped?
Shipping conditions for this item: Shipping with Dry Ice. Shipments are packed to maintain the specified storage condition, and the SDS is provided for transport classification.
