CAS No. 68-96-2

Batch: Purity:99.94
17-Hydroxyprogesterone Chemical Structure
Chemical Structure
Check the 17-Hydroxyprogesterone product page for in-depth specifications, including solubility, stock solutions, MOA, and working concentrations.

Chemical Information

CAS Number 68-96-2
Molecular Formula

C21H30O3

Molecular Weight (MW) 330.46

Ordering Information

Biological Activity

17-Hydroxyprogesterone (17-OHP) is an endogenous progestogen steroid hormone and a key intermediate in human steroidogenesis. Derived from progesterone, it serves as a precursor in the enzymatic biosynthesis of glucocorticoids, such as cortisol, as well as androgens and estrogens. Through conversion by cytochrome P450 enzymes including 21-hydroxylase, 17-hydroxyprogesterone modulates downstream steroid hormone signalling pathways and regulates endocrine homeostasis. [1]

How to Prepare Stock Solution?

Concentration Volume Mass
🧮 Molarity Calculator

Solubility

Batch:
All in vitro solubility values are batch-tested experimental data (non-literature values).
Solvent Solubility & Note
DMSO 66 mg/mL (199.72 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO. The recommended stock concentration is 10 mM in DMSO.)
Ethanol 66 mg/mL
Water Insoluble
FAQ
Q: Why does a DMSO stock precipitate in media/saline?
A: It is caused by unheated aqueous media (supersaturation), local solvent shock, or incorrect mixing sequence.
How to fix it?
  • Preheat media/saline to 37°C.
  • Mix rapidly (pipette/vortex) upon addition.
  • For complex mixes, always add the aqueous phase last.
  • Re-dissolve minor precipitates with a 37°C water bath and sonication (≤30 min).
Note: Technical data last updated: Sep 1, 2026.