Chlorhexidine
Also known as: 1,1'-Hexamethylenebis[5-(4-chlorophenyl)biguanide], 1,6-bis(5-(p-chlorophenyl)biguandino)hexane, 1,6-bis(p-chlorophenyldiguanido)hexane, Chlorhexidin, Chlorhexidine base, Chlorhexidinum, Clorhexidina, Hibiclens, Peridex, Rotersept, Sterilon, Tubulicid
Chlorhexidine (CAS 55-56-1) is a compound in the Organohalogen Compounds category listed in the Jingsj chemical database. It has the molecular formula C22H30Cl2N10 and a molecular weight of 505.447 g/mol. Key properties include a melting point of 134-136 °C(lit.), a boiling point of 591.7±60.0 °C at 760 mmHg, a density of 1.4±0.1 g/cm3 and a flash point of 311.6±32.9 °C. It is classified under GHS with signal word Danger and hazard statements H315 — Causes skin irritation, H319 — Causes serious eye irritation and H334 — May cause allergy or asthma symptoms if inhaled. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 55-56-1
- Jingsj CID
- J-1098784-7
- Molecular Formula
- C22H30Cl2N10
- Molecular Weight
- 505.447 g/mol
- Category
- Organohalogen Compounds
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 134-136 °C(lit.) |
|---|---|
| Boiling Point | 591.7±60.0 °C at 760 mmHg |
| Density | 1.4±0.1 g/cm3 |
| Flash Point | 311.6±32.9 °C |
| Exact Mass | 504.203186 |
| PSA | 167.58000 |
| LogP | 4.58 |
| Vapor Pressure | 0.0±1.7 mmHg at 25°C |
| Refractive Index | 1.659 |
| Stability | Stable. Incompatible with strong oxidizing agents. |
| Additional Property | 0.08 g/100 mL (20 ºC) |
GHS Safety & Compliance
- H315 — Causes skin irritation
- H319 — Causes serious eye irritation
- H334 — May cause allergy or asthma symptoms if inhaled
- H335 — May cause respiratory irritation
- H410 — Very toxic to aquatic life with long lasting effects
Frequently Asked Questions
What is the CAS number of Chlorhexidine?
The CAS number of Chlorhexidine is 55-56-1.
What are the molecular formula and molecular weight of Chlorhexidine?
Chlorhexidine has molecular formula C22H30Cl2N10 and molecular weight 505.447 g/mol.
Is Chlorhexidine hazardous?
Chlorhexidine has GHS signal word Danger and hazard statements H315 — Causes skin irritation; H319 — Causes serious eye irritation; H334 — May cause allergy or asthma symptoms if inhaled.
What are the upstream and downstream products of Chlorhexidine?
For Chlorhexidine, Upstream Products: Chlorhexidine diacetate, 1,6-Bis(cyano-guanidino)hexane, 4-Chloroaniline hydrochloride; Downstream Products: 4-Chloroaniline.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Chlorhexidine (CAS 55-56-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1098784-7 (accessed 2026-11-06).
Data for reference only; verify product details with suppliers before purchase.