Propidium iodide
Also known as: PI, Propidium diiodide, 3,8-Diamino-5-[3-(diethylmethylammonio)propyl]-6-phenylphenanthridinium diiodide, 3,8-Diamino-5-(3-diethylaminopropyl)-6-phenylphenanthridinium iodide methiodide, Phenanthridinium, 3,8-diamino-5-[3-(diethylmethylammonio)propyl]-6-phenyl-, diiodide, Propidium iodide solution
Propidium iodide (CAS 25535-16-4) is a compound in the Organohalogen Compounds category listed in the Jingsj chemical database. It has the molecular formula C27H34I2N4 and a molecular weight of 668.395 g/mol. Key property: a melting point of 220-225 °C (dec.)(lit.). It is classified under GHS with signal word Warning and hazard statements H315 — Causes skin irritation, H319 — Causes serious eye irritation and H335 — May cause respiratory irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 25535-16-4
- Jingsj CID
- J-47246-3
- Molecular Formula
- C27H34I2N4
- Molecular Weight
- 668.395 g/mol
- Category
- Organohalogen Compounds
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 220-225 °C (dec.)(lit.) |
|---|---|
| Exact Mass | 668.087280 |
| PSA | 55.92000 |
| LogP | 0.15880 |
| Storage Conditions | 2-8℃ |
GHS Safety & Compliance
- H315 — Causes skin irritation
- H319 — Causes serious eye irritation
- H335 — May cause respiratory irritation
- H341 — Suspected of causing genetic defects
Activity & Biological Data
| Additional Information | [1]. Hezel M, et al. Propidium iodide staining: a new application in fluorescence microscopy for analysis of cytoarchitecture in adult and developing rodent brain. Micron. 2012 Oct;43(10):1031-8. [2]. A rapid and simple method for measuring thymocyte apoptosis by propidium iodidestaining and flow cytometry. J Immunol Methods. 1991 Jun 3;139(2):271-9. |
|---|
Frequently Asked Questions
What is the CAS number of Propidium iodide?
The CAS number of Propidium iodide is 25535-16-4.
What are the molecular formula and molecular weight of Propidium iodide?
Propidium iodide has molecular formula C27H34I2N4 and molecular weight 668.395 g/mol.
Is Propidium iodide hazardous?
Propidium iodide has GHS signal word Warning and hazard statements H315 — Causes skin irritation; H319 — Causes serious eye irritation; H335 — May cause respiratory irritation.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Propidium iodide (CAS 25535-16-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-47246-3 (accessed 2026-11-06).
Data for reference only; verify product details with suppliers before purchase.