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Porphobilinogen

Also known as: 5-(Aminomethyl)-4-(carboxymethyl)-1H-pyrrole-3-propanoic acid, 5-(Aminomethyl)-4-(carboxymethyl)pyrrole-3-propionic acid, 3-[5-(aminomethyl)-4-(carboxymethyl)-1H-pyrrol-3-yl]propanoic acid, PBG, MFCD00005224, EINECS 207-666-3

Porphobilinogen (CAS 487-90-1) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C10H14N2O4 and a molecular weight of 226.22900 g/mol. Key properties include a melting point of 174-177ºC, a boiling point of 478.6ºC at 760 mmHg, a density of 1.421g/cm3 and a flash point of 243.2ºC. 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.
487-90-1
Jingsj CID
J-48076-2
Molecular Formula
C10H14N2O4
Molecular Weight
226.22900 g/mol
Category
Organic Compounds
Last updated
8/21/2026

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Physicochemical Properties

Melting Point174-177ºC
Boiling Point478.6ºC at 760 mmHg
Density1.421g/cm3
Flash Point243.2ºC
Exact Mass226.09500
PSA116.41000
LogP0.81800
Vapor Pressure5.74E-10mmHg at 25°C
Refractive Index1.621

GHS Safety & Compliance

IrritantSignal word: Warning
  • H315 — Causes skin irritation
  • H319 — Causes serious eye irritation
  • H335 — May cause respiratory irritation

Activity & Biological Data

TargetHuman Endogenous Metabolite
Additional Information[1]. Winkelman JW, et al. Neurotoxicity of tetraphenylporphinesulfonate TPPS4 and its relation to photodynamic therapy. Photochem Photobiol. 1987 Nov;46(5):801-7.

Customs & Trade Information

HS Code2933990090
Summary2933990090. heterocyclic compounds with nitrogen hetero-atom(s) only. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

Frequently Asked Questions

What is the CAS number of Porphobilinogen?

The CAS number of Porphobilinogen is 487-90-1.

What are the molecular formula and molecular weight of Porphobilinogen?

Porphobilinogen has molecular formula C10H14N2O4 and molecular weight 226.22900 g/mol.

Is Porphobilinogen hazardous?

Porphobilinogen 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:

How to cite: Jingsj. "Porphobilinogen (CAS 487-90-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-48076-2 (accessed 2026-11-09).

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