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You are here:Home » Biochemicals » Biochem-Amino Acids, Derivatives » L-Homocystine, 99%

L-Homocystine, 99%


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Catalog #H7000
Solubility (10mg/ml, 2N NH4)Colorless, clear, complete
Specific Rotation ( )D24, 1% HCl)+74° to +76°
Enantiomer Content
Identity (TLC)methanol/chloroform/ammonia 17%: 2/2/1 (v/v/v)
isopropanol/ammonia conc. 1/1 (v/v)
n-butanol/acetic acid/H2O 4/2/3 (v/v/v)
detected by UV, ninhydrin, chlorine-tolidine
plate: silicagel 60 F254
Contaminant 99% L-homo-Cystine
0.2% D-enantiomer
Water Content (KF)~0.1%
Elemental Analysis99.8% (Nth 10.44%, Nfd 10.42%)
Storage and StabilityMay be stored at 4°C. Stable for 6 months. Moisture sensitive.
CAS Number626-72-2
Molecular FormulaC8H16N2O4S2
Molecular Weight268.3
Purity~90% (TLC)
FormSupplied as a white powder.
Important NoteThis product as supplied is intended for research use only, not for use in human, therapeutic or diagnostic applications without the expressed written authorization of United States Biological.
Alternate namesH-Homocystine-(OH)2; L-4-4?-Dithiobis(2-aminobutanoic acid)

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