5-Isoquinolinesulfonic acid

异喹啉-5-磺酸

Also known as: 5-Isoquinolinesulfonic acid, 5-Sulfoisoquinoline, 5-Sulphoisoquinoline, Isoquinoline-5-sulfonic acid, MFCD03428073, Fasudil Impurity 35

5-Isoquinolinesulfonic acid (CAS 27655-40-9) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C9H7NO3S and a molecular weight of 209.222 g/mol. It is also known as 5-Sulfoisoquinoline, 5-Sulphoisoquinoline and Isoquinoline-5-sulfonic acid. Key properties include a melting point of 300 °C and a density of 1.5±0.1 g/cm3. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
27655-40-9
Jingsj CID
J-1361075-3
Molecular Formula
C9H7NO3S
Chinese Name
异喹啉-5-磺酸
Molecular Weight
209.222 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Melting Point300 °C
Density1.5±0.1 g/cm3

Frequently Asked Questions

What is the CAS number of 5-Isoquinolinesulfonic acid?

The CAS number of 5-Isoquinolinesulfonic acid is 27655-40-9.

What are the molecular formula and molecular weight of 5-Isoquinolinesulfonic acid?

5-Isoquinolinesulfonic acid has molecular formula C9H7NO3S and molecular weight 209.222 g/mol.

Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "5-Isoquinolinesulfonic acid (CAS 27655-40-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1361075-3 (accessed 2026-10-22).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.