Dotinurad-d4
Dotinurad is a urate transporter inhibitor developed for gout and hyperuricaemia, and its determination in biological matrices benefits from a stable-isotope internal standard. Dotinurad-d4 incorporates four deuterium atoms, giving formula C14H5D4Cl2NO4S and molecular weight 362.22, close to the unlabelled drug in retention behaviour but distinct in mass. Laboratories apply it in LC-MS/MS assays to correct extraction losses and ion suppression, to verify method performance during validation, and to confirm that the analyte peak is properly identified in study samples or in pharmaceutical testing. Pack sizes of 1 mg, 5 mg, 10 mg and 25 mg are listed for this item. Store at -20 +/- 5 C and ship with ice packs. Ask for a quotation or the supporting documentation to take this further.
Pack sizes and lead time
| Pack size | Availability | Quote |
|---|---|---|
| 1 mg | In stock | |
| 5 mg | 8 days | |
| 10 mg | 8 days | |
| 25 mg | 8 days |
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: -20±5℃, Shipping with Ice Packs.
Frequently asked questions
Is a certificate of analysis (COA) available for Dotinurad-d4?
Yes. A batch-specific COA and the MSDS are issued for every lot of Dotinurad-d4 (catalogue number C4X-2494135). 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 1 mg are held in stock and typically ship within 1–2 working days Other sizes (5 mg, 10 mg, 25 mg) are quoted with a lead time of approximately 8 days.
How is the purity of Dotinurad-d4 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 Dotinurad-d4 shipped?
Shipping conditions for this item: Shipping with Ice Packs. Shipments are packed to maintain the specified storage condition, and the SDS is provided for transport classification.