S-Methyl-L-thiocitrulline dihydrochloride

S-甲基-L-硫代瓜氨酸二盐酸盐

Also known as: S-Methyl-L-thiocitrulline hydrochloride, S-MTC dihydrochloride, (Z)-N-[Amino(methylsulfanyl)methylene]-L-ornithine dihydrochloride, L-Ornithine, N-[amino(methylthio)methylene]-, (Z)-, hydrochloride (1:2), L-Ornithine, N5-[imino(methylthio)methyl]-, hydrochloride (1:2), Pentanethioic acid, 2-amino-5-[(aminocarbonyl)amino]-, S-methyl ester, (2S)-, hydrochloride (1:2), S-Methyl (2S)-2-amino-5-(carbamoylamino)pentanethioate dihydrochloride, JNZHDSKJUXGYRG-XRIGFGBMSA-N

S-Methyl-L-thiocitrulline dihydrochloride (CAS 209589-59-3) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C7H17Cl2N3O2S and a molecular weight of 278.20 g/mol. It is also known as S-Methyl-L-thiocitrulline hydrochloride, S-MTC dihydrochloride and (Z)-N-[Amino(methylsulfanyl)methylene]-L-ornithine dihydrochloride. Key properties include a boiling point of 405ºC at 760mmHg, a density of 1.35g/cm3 and a flash point of 198.7ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 209589-59-3
Jingsj CID: J-20527-6
Molecular Formula: C₇H₁₇Cl₂N₃O₂S
Chinese Name: S-甲基-L-硫代瓜氨酸二盐酸盐
Molecular Weight: 278.20 g/mol
Category: Organic Acids
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	405ºC at 760mmHg
Density	1.35g/cm3
Flash Point	198.7ºC
Exact Mass	277.041840
PSA	127.00000
LogP	2.86080

Activity & Biological Data

Target	NOS[1]
Additional Information	[1]. Law A, et al. Neuroprotective and neurorescuing effects of isoform-specific nitric oxide synthase inhibitors, nitric oxide scavenger, and antioxidant against beta-amyloid toxicity. Br J Pharmacol. 2001 Aug;133(7):1114-24. [2]. Zelinski LM, et al. A prolonged nitric oxide-dependent, opioid-mediated antinociceptive effect of hyperbaric oxygenin mice. J Pain. 2009 Feb;10(2):167-72. [3]. Wakefield ID, et al. Comparative regional haemodynamic effects of the nitric oxide synthase inhibitors, S-methyl-L-thiocitrulline and L-NAME, in conscious rats. Br J Pharmacol. 2003 Jul;139(6):1235-43.

Target

NOS[1]

Additional Information

[1]. Law A, et al. Neuroprotective and neurorescuing effects of isoform-specific nitric oxide synthase inhibitors, nitric oxide scavenger, and antioxidant against beta-amyloid toxicity. Br J Pharmacol. 2001 Aug;133(7):1114-24. [2]. Zelinski LM, et al. A prolonged nitric oxide-dependent, opioid-mediated antinociceptive effect of hyperbaric oxygenin mice. J Pain. 2009 Feb;10(2):167-72. [3]. Wakefield ID, et al. Comparative regional haemodynamic effects of the nitric oxide synthase inhibitors, S-methyl-L-thiocitrulline and L-NAME, in conscious rats. Br J Pharmacol. 2003 Jul;139(6):1235-43.

Customs & Trade Information

HS Code	2930909090
Summary	2930909090. other organo-sulphur compounds. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:30.0%

Frequently Asked Questions

What is the CAS number of S-Methyl-L-thiocitrulline dihydrochloride?

The CAS number of S-Methyl-L-thiocitrulline dihydrochloride is 209589-59-3.

What are the molecular formula and molecular weight of S-Methyl-L-thiocitrulline dihydrochloride?

S-Methyl-L-thiocitrulline dihydrochloride has molecular formula C7H17Cl2N3O2S and molecular weight 278.20 g/mol.

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

Last updated: 8/21/2026

How to cite: Jingsj. "S-Methyl-L-thiocitrulline dihydrochloride (CAS 209589-59-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-20527-6 (accessed 2026-10-28).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.