8-Hydroxypyrene-1,3,6-trisulfonic acid trisodium salt

Also known as: Solvent Green 7, Pyranine, HPTS, C.I. 59040, D&C Green No. 8, trisodium 8-hydroxypyrene-1,3,6-trisulfonate, 1,3,6-Pyrenetrisulfonic acid, 8-hydroxy-, sodium salt (1:3), EINECS 228-783-6, MFCD00037575, 8-hydroxypyrene-1,3,6-trisulfonic acid sodium salt, trisodium,8-hydroxypyrene-1,3,6-trisulfonate

8-Hydroxypyrene-1,3,6-trisulfonic acid trisodium salt (CAS 6358-69-6) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C16H7Na3O10S3 and a molecular weight of 524.385 g/mol. Key properties include a melting point of 62-63.5 °C(lit.), a boiling point of 171-178 °C10 mm Hg(lit.), a density of 2.15 and a flash point of 250 °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.: 6358-69-6
Jingsj CID: J-41100-6
Molecular Formula: C₁₆H₇Na₃O₁₀S₃
Molecular Weight: 524.385 g/mol
Category: Organic Acids
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	62-63.5 °C(lit.)
Boiling Point	171-178 °C10 mm Hg(lit.)
Density	2.15
Flash Point	250 °C
Exact Mass	523.889465
PSA	216.97000
LogP	4.24430
Additional Property	300 g/L (25 ºC)

GHS Safety & Compliance

IrritantSignal word: Warning

H315 — Causes skin irritation
H319 — Causes serious eye irritation
H335 — May cause respiratory irritation

Activity & Biological Data

Additional Information	[1]. Saha T, et al. In vitro sensing of Cu(+) through a green fluorescence rise of pyranine. Photochem Photobiol Sci. 2014 Oct;13(10):1427-33. [2]. Thomas JV, et al. The fluorescent indicator pyranine is suitable for measuring stromal and cameral pH in vivo. Exp Eye Res. 1990 Mar;50(3):241-9. [3]. Evingür GA, et al. Kinetic models for the dynamical behavior of polyacrylamide (PAAm)-κ-carrageenan (κC) composite gels. J Biol Phys. 2015 Jan;41(1):37-47.

Additional Information

[1]. Saha T, et al. In vitro sensing of Cu(+) through a green fluorescence rise of pyranine. Photochem Photobiol Sci. 2014 Oct;13(10):1427-33. [2]. Thomas JV, et al. The fluorescent indicator pyranine is suitable for measuring stromal and cameral pH in vivo. Exp Eye Res. 1990 Mar;50(3):241-9. [3]. Evingür GA, et al. Kinetic models for the dynamical behavior of polyacrylamide (PAAm)-κ-carrageenan (κC) composite gels. J Biol Phys. 2015 Jan;41(1):37-47.

Customs & Trade Information

HS Code	2906299090
Summary	2906299090 other aromatic alcohols。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:5.5%。General tariff:30.0%

Frequently Asked Questions

What is the CAS number of 8-Hydroxypyrene-1,3,6-trisulfonic acid trisodium salt?

The CAS number of 8-Hydroxypyrene-1,3,6-trisulfonic acid trisodium salt is 6358-69-6.

What are the molecular formula and molecular weight of 8-Hydroxypyrene-1,3,6-trisulfonic acid trisodium salt?

8-Hydroxypyrene-1,3,6-trisulfonic acid trisodium salt has molecular formula C16H7Na3O10S3 and molecular weight 524.385 g/mol.

Is 8-Hydroxypyrene-1,3,6-trisulfonic acid trisodium salt hazardous?

8-Hydroxypyrene-1,3,6-trisulfonic acid trisodium 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 such as PubChem and supplier catalogs; supplier offers are provided by suppliers.

Last updated: 8/21/2026

How to cite: Jingsj. "8-Hydroxypyrene-1,3,6-trisulfonic acid trisodium salt (CAS 6358-69-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-41100-6 (accessed 2026-11-07).

Data for reference only; verify product details with suppliers before purchase.