WARNING: This product is for research use only, not for human or veterinary use.

MedKoo CAT#: 206006

CAS#: 34592-47-7 (R-isomer)

Description: Timonacic is a cyclic sulfur amino acid derivative with potential antineoplastic and antioxidant activities. Acting on cellular membranes of malignant cells through an unknown mechanism, timonacic may induce malignant cells to revert back to an untransformed state. This agent may also restore contact inhibition, a phenomenon characterized by the paracrine inhibition of mitosis following the formation of a critical cell mass, presumably the result of cell-to-cell signal transfer. Timonacic may also produce antioxidant effects secondary to its release of cysteine and restoration of glutathione concentrations.

Chemical Structure

CAS# 34592-47-7 (R-isomer)

Theoretical Analysis

MedKoo Cat#: 206006
Name: Timonacic
CAS#: 34592-47-7 (R-isomer)
Chemical Formula: C4H7NO2S
Exact Mass: 133.01975
Molecular Weight: 133.16888
Elemental Analysis: C, 36.08; H, 5.30; N, 10.52; O, 24.03; S, 24.08

Size Price Shipping out time Quantity
5g USD 150 2 Weeks
10g USD 250 2 Weeks
25g USD 450 2 Weeks
50g USD 650 2 Weeks
100g USD 950 2 Weeks
200g USD 1450 2 Weeks
Inquire bulk and customized quantity

Pricing updated 2021-03-03. Prices are subject to change without notice.

Timonacic, purity > 98%, is in stock. Current shipping out time is about 2 weeks after order is received. CoA, QC data and MSDS documents are available in one week after order is received.

Related CAS #: 444-27-9 (racemate)   35041-11-3 (racemate sodium)   34592-47-7 (R-isomer)   45521-09-3 (S-isomer)   35041-11-3 (R-isomer sodium)   67089-84-3 (R-isomer HCl)   100208-30-8 (sodium)    

Synonym: Timonacic; LThiazolidine4carboxylic acid; T4C.

IUPAC/Chemical Name: (R)-thiazolidine-4-carboxylic acid


InChi Code: InChI=1S/C4H7NO2S/c6-4(7)3-1-8-2-5-3/h3,5H,1-2H2,(H,6,7)/t3-/m0/s1


Solid powder

>98% (or refer to the Certificate of Analysis)

Shipping Condition:
Shipped under ambient temperature as non-hazardous chemical. This product is stable enough for a few weeks during ordinary shipping and time spent in Customs.

Storage Condition:
Dry, dark and at 0 - 4 C for short term (days to weeks) or -20 C for long term (months to years).

Soluble in DMSO, not in water

Shelf Life:
>5 years if stored properly

Drug Formulation:
This drug may be formulated in DMSO

Stock Solution Storage:
0 - 4 C for short term (days to weeks), or -20 C for long term (months).

HS Tariff Code:

Handling Instructions:

Preparing Stock Solutions

The following data is based on the product molecular weight 133.16888 Batch specific molecular weights may vary from batch to batch due to the degree of hydration, which will affect the solvent volumes required to prepare stock solutions.

Select a batch to recalculate based on the batch molecular weight:
Concentration / Solvent Volume / Mass 1 mg 5 mg 10 mg
1 mM 1.15 mL 5.76 mL 11.51 mL
5 mM 0.23 mL 1.15 mL 2.3 mL
10 mM 0.12 mL 0.58 mL 1.15 mL
50 mM 0.02 mL 0.12 mL 0.23 mL

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*When preparing stock solutions always use the batch-specific molecular weight of the product found on the vial label and SDS / CoA (available online).

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1: Kartal-Hodzic A, Marvola T, Schmitt M, Harju K, Peltoniemi M, Sivén M. Permeability and toxicity characteristics of L-cysteine and 2-methyl-thiazolidine-4-carboxylic acid in Caco-2 cells. Pharm Dev Technol. 2012 Feb 22. [Epub ahead of print] PubMed PMID: 22356486.

2: Han YK, Park YJ, Ha YM, Park D, Lee JY, Lee N, Yoon JH, Moon HR, Chung HY. Characterization of a novel tyrosinase inhibitor, (2RS,4R)-2-(2,4-dihydroxyphenyl)thiazolidine-4-carboxylic acid (MHY384). Biochim Biophys Acta. 2012 Apr;1820(4):542-9. doi: 10.1016/j.bbagen.2012.01.001. Epub 2012 Jan 9. PubMed PMID: 22251576.

3: Ha YM, Park YJ, Lee JY, Park D, Choi YJ, Lee EK, Kim JM, Kim JA, Park JY, Lee HJ, Moon HR, Chung HY. Design, synthesis and biological evaluation of 2-(substituted phenyl)thiazolidine-4-carboxylic acid derivatives as novel tyrosinase inhibitors. Biochimie. 2012 Feb;94(2):533-40. doi: 10.1016/j.biochi.2011.09.002. Epub 2011 Sep 17. PubMed PMID: 21945595.

4: Liu Y, Jing F, Xu Y, Xie Y, Shi F, Fang H, Li M, Xu W. Design, synthesis and biological activity of thiazolidine-4-carboxylic acid derivatives as novel influenza neuraminidase inhibitors. Bioorg Med Chem. 2011 Apr 1;19(7):2342-8. doi: 10.1016/j.bmc.2011.02.019. Epub 2011 Feb 17. PubMed PMID: 21382719.

5: Magdaleno A, Ahn IY, Paes LS, Silber AM. Actions of a proline analogue, L-thiazolidine-4-carboxylic acid (T4C), on Trypanosoma cruzi. PLoS One. 2009;4(2):e4534. doi: 10.1371/journal.pone.0004534. Epub 2009 Feb 20. PubMed PMID: 19229347; PubMed Central PMCID: PMC2645137.

6: Iwamoto T, Inoue Y, Ito K, Sakaue T, Kita S, Katsuragi T. The exchanger inhibitory peptide region-dependent inhibition of Na+/Ca2+ exchange by SN-6 [2-[4-(4-nitrobenzyloxy)benzyl]thiazolidine-4-carboxylic acid ethyl ester], a novel benzyloxyphenyl derivative. Mol Pharmacol. 2004 Jul;66(1):45-55. PubMed PMID: 15213295.

7: Luo H, Li Y, Wang FJ, Chen XQ, Tan XD. [Urinary excretion pattern of 2-thio-thiazolidine-4-carboxylic acid in workers exposed to carbon disulfide]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi. 2003 Dec;21(6):426-8. Chinese. PubMed PMID: 14761353.

8: Artali R, Bombieri G, Meneghetti F, Nava D, Ragg E, Stradi R. Structural characterization of a dipeptide compound with immunostimulant activity: 3-(5-thioxo-L-prolyl)-L-thiazolidine-4-carboxylic acid. Farmaco. 2003 Sep;58(9):883-9. PubMed PMID: 13679183.

9: Zhao YQ, Kinuta M, Abe T, Yao WB, Ubuka T. A method for determination of total glutathione and total cysteine as S-carboxymethyl derivatives by using an amino acid analyzer, and its application to samples from rat liver, kidney and blood after intraperitoneal administration of 2-(4-carboxy-D-gluco-tetrahydroxybutyl)thiazolidine-4-carboxylic acid. Acta Med Okayama. 1995 Feb;49(1):35-42. PubMed PMID: 7762408.

10: Bjelton L, Fransson GB. Availability of cysteine and of L-2-oxo-thiazolidine-4-carboxylic acid as a source of cysteine in intravenous nutrition. JPEN J Parenter Enteral Nutr. 1990 Mar-Apr;14(2):177-82. PubMed PMID: 2112627.

Additional Information