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Hyoscyamine

Also known as: L-Hyoscyamine, (-)-Hyoscyamine, Daturine, L-Atropine, (S)-Atropine, L-Tropine tropate, 8-methyl-8-azabicyclo[3.2.1]oct-3-yl (2S)-3-hydroxy-2-phenylpropanoate, Benzeneacetic acid, α-(hydroxymethyl)-, (3-endo)-8-methyl-8-azabicyclo[3.2.1]oct-3-yl ester, (αS)-

Hyoscyamine (CAS 101-31-5) is a compound in the Organic Bases category listed in the Jingsj chemical database. It has the molecular formula C17H23NO3 and a molecular weight of 289.369 g/mol. Key properties include a melting point of 108.5ºC, a boiling point of 429.8±45.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 213.7±28.7 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
101-31-5
Jingsj CID
J-21692-0
Molecular Formula
C17H23NO3
Molecular Weight
289.369 g/mol
Category
Organic Bases
Last updated
8/21/2026

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Physicochemical Properties

Melting Point108.5ºC
Boiling Point429.8±45.0 °C at 760 mmHg
Density1.2±0.1 g/cm3
Flash Point213.7±28.7 °C
Exact Mass289.167786
PSA49.77000
LogP1.53
Vapor Pressure0.0±1.1 mmHg at 25°C
Refractive Index1.581
Storage Conditions2-8°C

Activity & Biological Data

Additional Information[1]. http://www.drugbank.ca/drugs/DB00424

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 Hyoscyamine?

The CAS number of Hyoscyamine is 101-31-5.

What are the molecular formula and molecular weight of Hyoscyamine?

Hyoscyamine has molecular formula C17H23NO3 and molecular weight 289.369 g/mol.

What are the upstream and downstream products of Hyoscyamine?

For Hyoscyamine, Upstream Products: Scopolamine, Scopolamine hydrobromide, Tropine; Downstream Products: Tropic acid, Tropine, Apoatropine.

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

Last updated:

How to cite: Jingsj. "Hyoscyamine (CAS 101-31-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-21692-0 (accessed 2026-11-06).

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