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Alliin

Also known as: (±)-Alliin, DL-Alliin, S-Allyl-L-cysteine sulfoxide, 3-(Allylsulfinyl)-L-alanine, (±)-L-Alliin, ACSO, rac-Alliin, L-Alanine, 3-(2-propenylsulfinyl)-

Alliin (CAS 17795-26-5) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C6H11NO3S and a molecular weight of 177.221 g/mol. Key properties include a boiling point of 416.1±45.0 °C at 760 mmHg, a density of 1.4±0.1 g/cm3 and a flash point of 205.5±28.7 °C. 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.
17795-26-5
Jingsj CID
J-1966145-2
Molecular Formula
C6H11NO3S
Molecular Weight
177.221 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point416.1±45.0 °C at 760 mmHg
Density1.4±0.1 g/cm3
Flash Point205.5±28.7 °C
Exact Mass177.045959
PSA99.60000
LogP-0.48
Vapor Pressure0.0±2.1 mmHg at 25°C
Refractive Index1.579
Storage Conditions2-8°C

GHS Safety & Compliance

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

Activity & Biological Data

Additional Information[1]. Bijun Cheng, et al. Discovery of Alliin as a Putative Inhibitor of the Main Protease of SARS-CoV-2 by Molecular Docking. Biotechniques

Frequently Asked Questions

What is the CAS number of Alliin?

The CAS number of Alliin is 17795-26-5.

What are the molecular formula and molecular weight of Alliin?

Alliin has molecular formula C6H11NO3S and molecular weight 177.221 g/mol.

Is Alliin hazardous?

Alliin 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. "Alliin (CAS 17795-26-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1966145-2 (accessed 2026-11-07).

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