Hoechst 33258 (trihydrochloride)
赫斯特荧光染料33258
Also known as: Bisbenzimide H 33258 trihydrochloride, Bisbenzimide H 33258, BBIH, HOE 33258, Hoechst 33258, Hoechst Stain, 2'-(4-Hydroxyphenyl)-5-(4-methyl-1-piperazinyl)-2,5'-bi-1H-benzimidazole trihydrochloride, 4-[5-(4-Methyl-1-piperazinyl)-1H,1'H-2,5'-bibenzimidazol-2'-yl]phenol trihydrochloride, p-[5-(4-Methyl-1-piperazinyl)(2,5'-bi-1H-benzimidazol)-2'-yl]phenol trihydrochloride, Bisbenzimide Fluorochrome, Pibenzimol HCl, MFCD00012679
Hoechst 33258 (trihydrochloride) (CAS 23491-45-4) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C25H27Cl3N6O and a molecular weight of 533.880 g/mol. It is also known as Bisbenzimide H 33258 trihydrochloride, Bisbenzimide H 33258 and BBIH. Key properties include a melting point of 314 °C, a boiling point of 643.1ºC at 760mmHg and a flash point of 342.7ºC. GHS signal word: Warning. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 23491-45-4
- Jingsj CID
- J-1992937-0
- Molecular Formula
- C25H27Cl3N6O
- Chinese Name
- 赫斯特荧光染料33258
- Molecular Weight
- 533.880 g/mol
- Category
- Organic Compounds
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 314 °C |
|---|---|
| Boiling Point | 643.1ºC at 760mmHg |
| Flash Point | 342.7ºC |
GHS Safety & Compliance
Frequently Asked Questions
What is the CAS number of Hoechst 33258 (trihydrochloride)?
The CAS number of Hoechst 33258 (trihydrochloride) is 23491-45-4.
What are the molecular formula and molecular weight of Hoechst 33258 (trihydrochloride)?
Hoechst 33258 (trihydrochloride) has molecular formula C25H27Cl3N6O and molecular weight 533.880 g/mol.
Is Hoechst 33258 (trihydrochloride) hazardous?
Hoechst 33258 (trihydrochloride) has GHS signal word Warning.
Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Hoechst 33258 (trihydrochloride) (CAS 23491-45-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1992937-0 (accessed 2026-10-25).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.