Testosterone-16,16,17-D3

Testosterone is an endogenous androgen and a controlled anabolic steroid, and Testosterone-16,16,17-D3 is its trideuterated analogue, labelled at defined positions of the steroid nucleus. Hormone residue and doping control laboratories use labelled steroids of this type as internal standards because the deuterium atoms shift the molecular mass without materially changing extraction recovery or chromatographic retention, which allows isotope-dilution quantification of the native analyte. Typical uses include LC-MS/MS and GC-MS/MS method development, validation of confirmatory analysis in urine, serum and animal tissue, and routine testing where matrix effects and sample preparation losses need correction. The compound is a light yellow crystalline solid with the formula C19H25D3O2 and a molecular weight of 291.44. Storage at -20°C ± 5°C is advised, and shipments are prepared with ice packs. Listed pack sizes include 1 mg, 5 mg, 10 mg, 25 mg, 50 mg and 200 mg. Request a quote or further documentation.
Pack sizes and lead time
| Pack size | Availability | Quote |
|---|---|---|
| 1 mg | In stock | |
| 5 mg | In stock | |
| 10 mg | In stock | |
| 25 mg | In stock | |
| 50 mg | In stock | |
| 200 mg | In stock |
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 Testosterone-16,16,17-D3?
Yes. A batch-specific COA and the MSDS are issued for every lot of Testosterone-16,16,17-D3 (catalogue number CCAD301121). 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?
Pack sizes 1 mg, 5 mg, 10 mg, 25 mg, 50 mg, 200 mg are held in stock and typically ship within 1–2 working days.
How is the purity of Testosterone-16,16,17-D3 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 chao.lu@cato-chem.com with the target quantity and required delivery date.
How is Testosterone-16,16,17-D3 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.

