L-Lysine hydrochloride

Also known as: L-Lysine monohydrochloride, L-(+)-Lysine monohydrochloride, L-Lysine HCl, L-Lysine HCL, L-Lysine, hydrochloride, L-Lysine hydrochloride (1:1), L-Lysine monohydrochloride (feed grade), L-Lysine chlorhydrate, Lysine hydrochloride, H-Lys-OH hydrochloride, H-Lys-OH.HCl, (2S)-2,6-Diaminohexanoic acid monohydrochloride, (S)-2,6-Diaminohexanoic acid hydrochloride, (S)-2,6-Diaminohexanoic acid monohydrochloride, EINECS 211-519-9, MFCD00064564

L-Lysine hydrochloride (CAS 657-27-2) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C6H15ClN2O2 and a molecular weight of 182.648 g/mol. Key properties include a melting point of 263 °C (dec.)(lit.), a boiling point of 311.5ºC at 760 mmHg and a flash point of 142.2ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 657-27-2
Jingsj CID: J-961925-4
Molecular Formula: C₆H₁₅ClN₂O₂
Molecular Weight: 182.648 g/mol
Category: Organic Acids
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	263 °C (dec.)(lit.)
Boiling Point	311.5ºC at 760 mmHg
Flash Point	142.2ºC
Exact Mass	182.082199
PSA	89.34000
LogP	1.72990
Additional Property	65 g/100 mL (20 ºC)

Activity & Biological Data

Additional Information	[1]. Al-Malki AL, et al. Suppression of acute pancreatitis by L-lysinein mice. BMC Complement Altern Med. 2015 Jun 23;15:193. [2]. Shimomura A, et al. Dietary L-lysineprevents arterial calcification in adenine-induced uremic rats. J Am Soc Nephrol. 2014 Sep;25(9):1954-65. [3]. Baruffol C, et al. L-lysine dose dependently delays gastric emptying and increases intestinal fluid volume in humans and rats. Neurogastroenterol Motil. 2014 Jul;26(7):999-1009.

Additional Information

[1]. Al-Malki AL, et al. Suppression of acute pancreatitis by L-lysinein mice. BMC Complement Altern Med. 2015 Jun 23;15:193. [2]. Shimomura A, et al. Dietary L-lysineprevents arterial calcification in adenine-induced uremic rats. J Am Soc Nephrol. 2014 Sep;25(9):1954-65. [3]. Baruffol C, et al. L-lysine dose dependently delays gastric emptying and increases intestinal fluid volume in humans and rats. Neurogastroenterol Motil. 2014 Jul;26(7):999-1009.

Customs & Trade Information

HS Code	2922499990
Summary	HS:2922499990 other amino-acids, other than those containing more than one kind of oxygen function, and their esters; salts thereof VAT:17.0% Tax rebate rate:9.0% Supervision conditions:AB(certificate of inspection for goods inward,certificate of inspection for goods outward) MFN tariff:6.5% General tariff:30.0%

Frequently Asked Questions

What is the CAS number of L-Lysine hydrochloride?

The CAS number of L-Lysine hydrochloride is 657-27-2.

What are the molecular formula and molecular weight of L-Lysine hydrochloride?

L-Lysine hydrochloride has molecular formula C6H15ClN2O2 and molecular weight 182.648 g/mol.

What are the upstream and downstream products of L-Lysine hydrochloride?

For L-Lysine hydrochloride, Downstream Products: L-Pipecolic acid, N2,N6-bis[(phenylmethoxy)carbonyl]-L-lysine, 1,5-Diaminopentane.

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

Last updated: 8/21/2026

How to cite: Jingsj. "L-Lysine hydrochloride (CAS 657-27-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-961925-4 (accessed 2026-11-09).

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