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≥98% (TLC)

2-Aminoethanesulfinic acid
Empirical Formula (Hill Notation):
CAS Number:
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Quality Level


≥98% (TLC)


white to off-white


H2O: 100 mg/mL

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Hypotaurine has been used as a supplement in fertilization medium (Fert- tyrode albumin lactate pyruvate (TALP)), which used in in-vitro fertilization and evaluation of embryo development. It is also used as a H2S scavenger.


10 mg in glass bottle
100, 250 mg in poly bottle
1 g in poly bottle

Biochem/physiol Actions

Hypotaurine, a cystamine analog, is the precursor for taurine synthesis. It can act as an antioxidant and singlet oxygen scavenger, thereby protecting cells from oxidative damage. Hypotaurine is reported to play an important role in the maintenance and stimulation of sperm motility and also in vitro fertilization and embryo development.
Antioxidant that binds hydroxyl radicals. Endogenous inhibitory neuromodulator that is blocked by strychnine and picrotoxin. Inhibits the Na2+-dependent transport of GABA and β-alanine. It is a degradation product of cysteine and a precursor of taurine.

Other Notes

Tandem Mass Spectrometry data independently generated by Scripps Center for Metabolomics is available to view or download in PDF. H1384.pdf Tested metabolites are featured on Scripps Center for Metabolomics METLIN Metabolite Database. To learn more, visit


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Hazard Statements

Hazard Classifications

Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

Target Organs

Respiratory system

Storage Class Code

11 - Combustible Solids



Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificate of Analysis

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Certificate of Origin

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More Documents

Quotes and Ordering

The Significance of hydrogen sulfide for Arabidopsis seed germination.
Baudouin E, et al.
Frontiers in Plant Science, 7, 930-930 (2016)
M M Mahadevan et al.
Fertility and sterility, 43(2), 263-267 (1985-02-01)
Removal of cumulus may increase the chance of fertilization in patients with sperm antibodies, may facilitate fertilization in vitro with a small number of spermatozoa, and is necessary for microsurgical injection procedures in vitro. The aim of this study was
Effect of hypotaurine on in vitro fertilization and production of term offspring from in vitro-fertilized ova of the Japanese field vole, Microtus montebelli.
Wakayama T
Biology of Reproduction, 54(3), 625-630 (1996)
Andrea Carenzo et al.
Cells, 9(8) (2020-08-07)
Oral premalignant lesions (OPLs) represent the most common oral precancerous conditions. One of the major challenges in this field is the identification of OPLs at higher risk for oral squamous cell cancer (OSCC) development, by discovering molecular pathways deregulated in
Ultrastructural and immunohistochemical characterization of the bovine epiblast.
Vejlsted M, et al.
Biology of Reproduction, 72(3), 678-686 (2005)

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