4,4'-bis[3-carboxy-5-oxo-1-(4-sulfophenyl)-2-pyrazolin-4-yl]pentamethine oxonole dipotassium salt
4-[5-[3-羧基-5-羟基-1-(4-磺苯基)-1H-吡唑-4-基]-2,4-亚戊二烯基]-4,5-二氢-5-氧代-1-(4-磺苯基)-1H-吡唑-3-羧酸二钾盐
Also known as: OXONOLE BLUE, OXONOLE BLUE, DIPOTASSIUM SALT, 1,1'-bis(4-sulfophenyl)-3,3'-dicarboxy-5,5'-dihydroxypyrazolo-4,4'-penta-methine oxonole dipotassium salt, PINA(R) OXONOL BLUE 628, 1H-Pyrazole-3-carboxylic acid, 4-[5-[3-carboxy-5-hydroxy-1-(4-sulfophenyl)-1H-pyrazol-4-yl]-2,4-pentadienylidene]-4,5-dihydro-5-oxo-1-(4-sulfophenyl)-, dipotassium salt
4,4'-bis[3-carboxy-5-oxo-1-(4-sulfophenyl)-2-pyrazolin-4-yl]pentamethine oxonole dipotassium salt (CAS 51858-17-4) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C25H16K2N4O12S2 and a molecular weight of 706.74100 g/mol. It is also known as OXONOLE BLUE, OXONOLE BLUE, DIPOTASSIUM SALT and 1,1'-bis(4-sulfophenyl)-3,3'-dicarboxy-5,5'-dihydroxypyrazolo-4,4'-penta-methine oxonole dipotassium salt. Key properties include a melting point of 250ºC (dec.)(lit.) and a flash point of 113 °C. 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.
- 51858-17-4
- Jingsj CID
- J-34715-0
- Molecular Formula
- C25H16K2N4O12S2
- Chinese Name
- 4-[5-[3-羧基-5-羟基-1-(4-磺苯基)-1H-吡唑-4-基]-2,4-亚戊二烯基]-4,5-二氢-5-氧代-1-(4-磺苯基)-1H-吡唑-3-羧酸二钾盐
- Molecular Weight
- 706.74100 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 250ºC (dec.)(lit.) |
|---|---|
| Flash Point | 113 °C |
| Exact Mass | 705.94800 |
| PSA | 276.48000 |
| LogP | 0.74550 |
GHS Safety & Compliance
- H315 — Causes skin irritation
- H319 — Causes serious eye irritation
- H335 — May cause respiratory irritation
Activity & Biological Data
| Additional Information | [1]. Kreye O, et al. Dye-Modified and Photoswitchable Macrocycles by Multiple Multicomponent Macrocyclizations Including Bifunctional Building Blocks (MiBs)[J]. Qsar & Combinatorial Science, 2010, 25(5-6):461-464. [2]. Bashford CL, et al. Oxonol dyes as monitors of membrane potential: the effect of viruses and toxins on the plasma membrane potential of animal cells in monolayer culture and in suspension. J Cell Physiol. 1985 Jun;123(3):326-36. |
|---|
Frequently Asked Questions
What is the CAS number of 4,4'-bis[3-carboxy-5-oxo-1-(4-sulfophenyl)-2-pyrazolin-4-yl]pentamethine oxonole dipotassium salt?
The CAS number of 4,4'-bis[3-carboxy-5-oxo-1-(4-sulfophenyl)-2-pyrazolin-4-yl]pentamethine oxonole dipotassium salt is 51858-17-4.
What are the molecular formula and molecular weight of 4,4'-bis[3-carboxy-5-oxo-1-(4-sulfophenyl)-2-pyrazolin-4-yl]pentamethine oxonole dipotassium salt?
4,4'-bis[3-carboxy-5-oxo-1-(4-sulfophenyl)-2-pyrazolin-4-yl]pentamethine oxonole dipotassium salt has molecular formula C25H16K2N4O12S2 and molecular weight 706.74100 g/mol.
Is 4,4'-bis[3-carboxy-5-oxo-1-(4-sulfophenyl)-2-pyrazolin-4-yl]pentamethine oxonole dipotassium salt hazardous?
4,4'-bis[3-carboxy-5-oxo-1-(4-sulfophenyl)-2-pyrazolin-4-yl]pentamethine oxonole dipotassium salt 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 and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "4,4'-bis[3-carboxy-5-oxo-1-(4-sulfophenyl)-2-pyrazolin-4-yl]pentamethine oxonole dipotassium salt (CAS 51858-17-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-34715-0 (accessed 2026-10-28).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.