DL-Cysteine (BAT-007653)
* For research use only

Cysteine is a non-essential amino acid that can be synthesized by the human body under normal physiological conditions if a sufficient quantity of methionine is available. Cysteine is commonly used as a precursor in the food and pharmaceutical industries. Cysteine is used as a processing aid for baking, as an additive in cigarettes, as well as in the preparation of meat flavours.

Category
DL-Amino Acids
Catalog number
BAT-007653
CAS number
3374-22-9
Molecular Formula
C3H7NO2S
Molecular Weight
121.16
DL-Cysteine
IUPAC Name
2-amino-3-sulfanylpropanoic acid
Synonyms
Cysteine; DL-Cysteine; (+/-)-Cysteine; NSC 63864
Appearance
Off-White Solid
Purity
98%
Density
1.334 g/cm3
Melting Point
>197ºC(dec.)
Boiling Point
293.9ºC at 760 mmHg
Storage
Store at -20°C Under inert atmosphere
Solubility
soluble in DMSO, Water
InChI
InChI=1S/C3H7NO2S/c4-2(1-7)3(5)6/h2,7H,1,4H2,(H,5,6)
InChI Key
XUJNEKJLAYXESH-UHFFFAOYSA-N
Canonical SMILES
C(C(C(=O)O)N)S
1.Sequestering ability of some chelating agents towards methylmercury(II).
Falcone G1, Foti C, Gianguzza A, Giuffrè O, Napoli A, Pettignano A, Piazzese D. Anal Bioanal Chem. 2013 Jan;405(2-3):881-93. doi: 10.1007/s00216-012-6336-5. Epub 2012 Sep 1.
A study on the interactions between CH(3)Hg(+) and some S, N and O donor ligands (2-mercaptopropanoic acid (thiolactic acid (H(2)TLA)), 3-mercaptopropanoic acid (H(2)MPA), 2-mercaptosuccinic acid (thiomalic acid (H(3)TMA)), D,L-penicillamine (H(2)PSH), L-cysteine (H(2)CYS), glutathione (H(3)GSH), N,N'-bis(3-aminopropyl)-1-4-diaminobutane (spermine (SPER)), 1,2,3,4,5,6-benzenehexacarboxylic acid (mellitic acid (H(6)MLT)) and ethylenediaminetetraacetic acid (H(4)EDTA)) is reported. The speciation models in aqueous solution and the possible structures of the complexes formed are discussed on the basis of potentiometric, calorimetric, UV spectrophotometric and electrospray mass spectrometric results. For the CH(3)Hg(+)-S donor ligand systems, the formation of ML(1-z) and MLH(2-z) complex species is observed, together with a diprotonated MLH(2)(3-z) species for CYS(2-), PSH(2-) and GSH(3-) and the mixed hydrolytic one ML(OH)(-z) for TLA(2-) and MPA(2-).
Bio Calculators
Stock concentration: *
Desired final volume: *
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L

* Our calculator is based on the following equation:
Concentration (start) x Volume (start) = Concentration (final) x Volume (final)
It is commonly abbreviated as: C1V1 = C2V2

* Total Molecular Weight:
g/mol
Tip: Chemical formula is case sensitive. C22H30N4O c22h30n40
g/mol
g
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