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4-Nitrophenyl α-D-galactopyranoside

Also known as: p-Nitrophenyl α-D-galactopyranoside, PNPG, PNP-α-D-Gal, 4-Nitrophenyl-α-D-galactoside, α-D-Galactopyranoside, 4-nitrophenyl, p-Nitrophenyl α-D-galactoside, 1-O-(4-Nitrophenyl)-α-D-galactopyranose

4-Nitrophenyl α-D-galactopyranoside (CAS 7493-95-0) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C12H15NO8 and a molecular weight of 301.249 g/mol. Key properties include a melting point of 166-169ºC, a boiling point of 582.2±50.0 °C at 760 mmHg, a density of 1.6±0.1 g/cm3 and a flash point of 305.9±30.1 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
7493-95-0
Jingsj CID
J-925635-3
Molecular Formula
C12H15NO8
Molecular Weight
301.249 g/mol
Category
Aromatic Hydrocarbons
Last updated
8/21/2026

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Physicochemical Properties

Melting Point166-169ºC
Boiling Point582.2±50.0 °C at 760 mmHg
Density1.6±0.1 g/cm3
Flash Point305.9±30.1 °C
Exact Mass301.079773
PSA145.20000
LogP-0.55
Vapor Pressure0.0±1.7 mmHg at 25°C
Refractive Index1.648

Activity & Biological Data

Additional Information[1]. Okamoto-Nakazato A. Implications of the galactosidase activity of yieldin in the regulatory mechanism of yield threshold that is fundamental to cell wall extension. Physiol Plant. 2018 Jun;163(2):259-266.

Frequently Asked Questions

What is the CAS number of 4-Nitrophenyl α-D-galactopyranoside?

The CAS number of 4-Nitrophenyl α-D-galactopyranoside is 7493-95-0.

What are the molecular formula and molecular weight of 4-Nitrophenyl α-D-galactopyranoside?

4-Nitrophenyl α-D-galactopyranoside has molecular formula C12H15NO8 and molecular weight 301.249 g/mol.

What are the upstream and downstream products of 4-Nitrophenyl α-D-galactopyranoside?

For 4-Nitrophenyl α-D-galactopyranoside, Upstream Products: 4-Nitrophenyl 2,3,4,6-tetra-O-acetyl-α-D-galactopyranoside, 1,2,3,4,6-Penta-O-acetyl-D-galactopyranose, 2,3,4,6-Tetra-O-acetyl-alpha-D-galactopyranosyl bromide; Downstream Products: D-Galactose, Stachyose, Raffinose.

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

Last updated:

How to cite: Jingsj. "4-Nitrophenyl α-D-galactopyranoside (CAS 7493-95-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-925635-3 (accessed 2026-11-09).

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