Cysteine Related Products
Axios Research stands at the forefront of pharmaceutical reference standards ingenuity, providing high quality Cysteine Reference Standards. These include both pharmacopeial and non-pharmacopeial Cysteine impurities, metabolites, stable isotope products, and nitrosamines. Our Cysteine impurity reference standards are essential for pharmaceutical research, aiding in product development, ANDA and DMF submissions, quality control (QC), method validation, and stability studies. They are also used in identifying unknown impurities and evaluating genotoxic potential. Our Cysteine related products are meticulously characterized and come with a comprehensive Certificates of Analysis (COA) and analytical data that comply with regulatory standards.
(4R)-6-methyl-1,2,5-oxathiazinane-4-carboxylic acid

M.F. C₅H₉NO₃S
M.W. 163.19
CAT# AR-C03927
CAS# NA
L-Lysine S-(Carboxymethyl)-L-Cysteine

M.F. C₆H₁₄N₂O₂ C₅H₉NO₄S
M.W. 146.19 179.20
CAT# AR-C03902
CAS# 49673-81-6
S-[2-[(1-iminoethyl)amino]ethyl]-L-Homocysteine
![Show details for S-[2-[(1-iminoethyl)amino]ethyl]-L-Homocysteine Picture of S-[2-[(1-iminoethyl)amino]ethyl]-L-Homocysteine](https://bc3c83a0874864a50753-7010fd7f2bdf81ab41ee28479491701e.ssl.cf2.rackcdn.com/media//catalog/AR-C03908.jpg?size=256)
M.F. C₈H₁₇N₃O₂S
M.W. 219.31
CAT# AR-C03908
CAS# 210354-22-6
S-Trityl-N-Fomc_L-Cysteine-34S

M.F. ₃₄S C₃₇H₃₁NO₄
M.W. 587.63
CAT# AR-C03913
CAS# 103213-32-7 (non-labelled)
N-Acetyl-S-(2-hydroxypropyl)-L-Cysteine Dicyclohexylammonium Salt

M.F. C₈H₁₅NO₄S. C₁₂H₂₃N
M.W. 221.27 181.32
CAT# AR-C03924
CAS# 38130-86-8
2-Methyl-2-thiazoline-4-carboxylic acid sodium salt

M.F. C₅H₆NO₂S. Na
M.W. 144.17; 22.99
CAT# AR-C03899
CAS# 15058-19-2
N-Acetyl-S-(2-hydroxypropyl)Cysteine-d6 Dicyclohexylammonium Salt

M.F. C₈H₉D₆NO₄S. C₁₂H₂₃N
M.W. 227.31 181.32
CAT# AR-C03928
CAS# NA
S-(1,2-Dichlorovinyl)-Cysteine-13C3-15N

M.F. C₂H₇Cl₂O₂S ₁₃C₃ ₁₅N
M.W. 220.05
CAT# AR-C03889
CAS# 13419-46-0 (non-labelled)
N-Acetyl-L-Cysteine-d3 (Acetylcysteine-d3)

M.F. C₅H₆D₃NO₃S
M.W. 166.21
CAT# AR-C03897
CAS# 131685-11-5
L-Cysteine S-Sulfate-13C3-15N

M.F. ₁₃C₃ ₁₅N H₇O₅S₂
M.W. 205.18
CAT# AR-C03919
CAS# 1637-71-4 (non-labelled)
Acetylcysteine EP Impurity B-13C3 (L-Cysteine-13C3)

M.F. ₁₃C₃ H₇NO₂S
M.W. 124.13
CAT# AR-C03922
CAS# 52-90-4 (non-labelled)
N-(Acetyl-d3)-S-(3-Oxopropyl)-L-Cysteine

M.F. C₈H₁₀D₃NO₄S
M.W. 222.27
CAT# AR-C03923
CAS# 140226-30-8 (non-labelled)
N-Acetyl-S-(2-hydroxypropyl)Cysteine-d3 Dicyclohexylammonium Salt

M.F. C₈H₁₂D₃NO₄S. C₁₂H₂₃N
M.W. 224.29 181.32
CAT# AR-C03925
CAS# 1356934-59-2