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Isotretinoin

Also known as: 13-cis-Retinoic acid, 13-cis-vitamin A acid, Accutane, Amnesteem, Claravis, Roaccutan, Sotret, isotrex, cis-retinoic acid, Ro 4-3780, (2Z,4E,6E,8E)-3,7-dimethyl-9-(2,6,6-trimethylcyclohex-1-en-1-yl)nona-2,4,6,8-tetraenoic acid, 13-cis-Tretinoin, 13Z-Retinoic acid

Isotretinoin (CAS 4759-48-2) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C20H28O2 and a molecular weight of 300.435 g/mol. Key properties include a melting point of 172-175 °C(lit.), a boiling point of 462.8±14.0 °C at 760 mmHg, a density of 1.0±0.1 g/cm3 and a flash point of 350.6±11.0 °C. It is classified under GHS with signal word Danger 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.
4759-48-2
Jingsj CID
J-801585-8
Molecular Formula
C20H28O2
Molecular Weight
300.435 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point172-175 °C(lit.)
Boiling Point462.8±14.0 °C at 760 mmHg
Density1.0±0.1 g/cm3
Flash Point350.6±11.0 °C
Exact Mass300.208923
PSA37.30000
LogP6.83
Vapor Pressure0.0±2.5 mmHg at 25°C
Refractive Index1.556
Additional Propertyinsoluble

GHS Safety & Compliance

Irritant / Health HazardSignal word: Danger
  • H315 — Causes skin irritation
  • H319 — Causes serious eye irritation
  • H335 — May cause respiratory irritation
  • H360 — May damage fertility or the unborn child

Activity & Biological Data

TargetHuman Endogenous Metabolite
Additional Information[1]. Thielitz, A. and H. Gollnick, [Isotretinoin. How should it be used?]. Hautarzt, 2013. 64(4): p. 263-8. [2]. Norris, D.A., et al., Isotretinoin produces significant inhibition of monocyte and neutrophil chemotaxis in vivo in patients with cystic acne. J Invest Dermatol, 1987. 89(1): p. 38-43. [3]. Rademaker, M., J.M. Wishart, and N.M. Birchall, Isotretinoin 5 mg daily for low-grade adult acne vulgaris - a placebo-controlled, randomized double-blind study. J Eur Acad Dermatol Venereol, 2013. [4]. Dicken, C.H., Isotretinoin treatment of pityriasis rubra pilaris. J Am Acad Dermatol, 1987. 16(2 Pt 1): p. 297-301.

Customs & Trade Information

HS Code2942000000

Frequently Asked Questions

What is the CAS number of Isotretinoin?

The CAS number of Isotretinoin is 4759-48-2.

What are the molecular formula and molecular weight of Isotretinoin?

Isotretinoin has molecular formula C20H28O2 and molecular weight 300.435 g/mol.

Is Isotretinoin hazardous?

Isotretinoin has GHS signal word Danger and hazard statements H315 — Causes skin irritation; H319 — Causes serious eye irritation; H335 — May cause respiratory irritation.

What are the upstream and downstream products of Isotretinoin?

For Isotretinoin, Upstream Products: [(2E,4E)-3-Methyl-5-(2,6,6-trimethylcyclohex-2-en-1-yl)-2,4-pentadien-1-yl]triphenylphosphonium bromide, Tretinoin.

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

Last updated:

How to cite: Jingsj. "Isotretinoin (CAS 4759-48-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-801585-8 (accessed 2026-11-09).

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