Fosfomycin Impurity 24 CAS 1416734-33-2

Fosfomycin Impurity 24 is a related substance of fosfomycin, the phosphonic acid antibiotic used for uncomplicated urinary tract infections and in combination therapy, and it is provided as a characterised standard for related-substance testing. Fosfomycin is a small, highly polar molecule, and its impurities are correspondingly difficult to retain and resolve on conventional reversed-phase systems, so reference materials are essential when a method is being developed or validated. Uses include HPLC and LC-MS method development and validation, system suitability and resolution checks, peak identification, and estimation of the impurity in drug substance and finished product. The compound has the formula C6H14O8P2 and a molecular weight of 276.12. It is stored at 2 °C to 8 °C and shipped at ambient temperature, and pack sizes of 10 mg, 20 mg, 25 mg, 50 mg, 100 mg and 200 mg are listed.
Part of Antibiotic impurity standards — 66 items in this group.
Specification
- Catalogue number
- C4X-131624
- CAS number
- 1416734-33-2
- Molecular formula
- C6H14O8P2
- Molecular weight
- 276.12
- Storage
- 2℃ ~ 8℃
- Shipping
- Shipping at Room Temperature
- Country of origin
- China
- Pack sizes
- 10 mg, 25 mg
This is the product specification. Typical purity and assay values are those measured on a released lot and stated on that lot’s certificate of analysis; the certificate for the lot shipped with your order travels with the goods. A specification sheet and a certificate of analysis are different documents and are not interchangeable. A sample certificate can be requested while the batch is being prepared.
Pack sizes and lead time
| Pack size | Availability | Quote |
|---|---|---|
| 10 mg | 56 days | Request quote |
| 25 mg | 56 days | Request quote |
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: 2℃ ~ 8℃, Shipping at Room Temperature.
Frequently asked questions
Is a certificate of analysis (COA) available for Fosfomycin Impurity 24?
Yes. A batch-specific COA and the MSDS are issued for every lot of Fosfomycin Impurity 24 (catalogue number C4X-131624). Use the COA link on this page, or email chao.lu@cato-chem.com with the lot number printed on your label and we will send the matching document.
What pack sizes and lead times are offered?
Other sizes (10 mg, 25 mg) are quoted with a lead time of approximately 56 days.
How is the purity of Fosfomycin Impurity 24 documented?
Purity is determined per batch and stated on the certificate of analysis 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 chao.lu@cato-chem.com with the target quantity and required delivery date.
How is Fosfomycin Impurity 24 shipped?
Shipping conditions for this item: Shipping at Room Temperature. Shipments are packed to maintain the specified storage condition, and the SDS is provided for transport classification.



