5,10,15,20-Tetrakis(4-hydroxyphenyl)porphyrin

Also known as: 4,4',4'',4'''-(21H,23H-Porphine-5,10,15,20-tetrayl)tetrakis(phenol), meso-Tetra(p-hydroxyphenyl)porphine, 5,10,15,20-Tetrakis(4-hydroxyphenyl)-21H,23H-porphine, 5,10,15,20-Tetrakis(4-hydroxyphenyl)-21H,23H-porphyrin, 5,10,15,20-tetra(4-hydroxyphenyl)porphyrin, Phenol, 4,4',4'',4'''-(21H,23H-porphine-5,10,15,20-tetrayl)tetrakis-, MFCD00191501

5,10,15,20-Tetrakis(4-hydroxyphenyl)porphyrin (CAS 51094-17-8) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C44H30N4O4 and a molecular weight of 678.733 g/mol. Key properties include a melting point of >300ºC(lit.) and a density of 1.4±0.1 g/cm3. It is classified under GHS with signal word Danger and hazard statements H314 — Causes severe skin burns and eye damage and H335 — May cause respiratory irritation. No supplier offers are currently listed; request a quote. Record last updated Nov 3, 2026.

CAS No.: 51094-17-8
Jingsj CID: J-23730-9
Molecular Formula: C₄₄H₃₀N₄O₄
Molecular Weight: 678.733 g/mol
Category: Aromatic Hydrocarbons
Last updated: 11/3/2026

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Physicochemical Properties

Melting Point	>300ºC(lit.)
Density	1.4±0.1 g/cm3
Exact Mass	678.226685
PSA	137.22000
LogP	9.26
Refractive Index	1.746

GHS Safety & Compliance

Corrosion / IrritantSignal word: Danger

H314 — Causes severe skin burns and eye damage
H335 — May cause respiratory irritation

Frequently Asked Questions

What is the CAS number of 5,10,15,20-Tetrakis(4-hydroxyphenyl)porphyrin?

The CAS number of 5,10,15,20-Tetrakis(4-hydroxyphenyl)porphyrin is 51094-17-8.

What are the molecular formula and molecular weight of 5,10,15,20-Tetrakis(4-hydroxyphenyl)porphyrin?

5,10,15,20-Tetrakis(4-hydroxyphenyl)porphyrin has molecular formula C44H30N4O4 and molecular weight 678.733 g/mol.

Is 5,10,15,20-Tetrakis(4-hydroxyphenyl)porphyrin hazardous?

5,10,15,20-Tetrakis(4-hydroxyphenyl)porphyrin has GHS signal word Danger and hazard statements H314 — Causes severe skin burns and eye damage; 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: 11/3/2026

How to cite: Jingsj. "5,10,15,20-Tetrakis(4-hydroxyphenyl)porphyrin (CAS 51094-17-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-23730-9 (accessed 2026-11-09).

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