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Merck
CN

16583

2-Mercaptopropionic acid

analytical standard

Synonym(s):

Thiolactic acid, 2-Mercaptopropionic acid

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About This Item

Linear Formula:
CH3CH(SH)COOH
CAS Number:
79-42-5
Molecular Weight:
106.14
UNSPSC Code:
85151701
NACRES:
NA.24
PubChem Substance ID:
329751270
EC Number:
201-206-5
Beilstein/REAXYS Number:
506218
MDL number:
MFCD00004862

Key Documents

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Product Name

2-Mercaptopropionic acid, analytical standard

InChI key

PMNLUUOXGOOLSP-UHFFFAOYSA-N

InChI

1S/C3H6O2S/c1-2(6)3(4)5/h2,6H,1H3,(H,4,5)

SMILES string

CC(S)C(O)=O

grade

analytical standard

assay

≥97.0% (GC)

shelf life

limited shelf life, expiry date on the label

impurities

≤3.0% water (calc. from elemental analysis)

refractive index

n20/D 1.481 (lit.)

bp

102 °C/16 mmHg (lit.)
203-208 °C (lit.)

mp

10-14 °C (lit.)

density

1.196 g/mL at 25 °C (lit.)

application(s)

cleaning products
cosmetics
food and beverages
personal care

format

neat

Quality Level

100

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Application

2-Mercaptopropionic acid may be used as an analytical standard for the quantification of the analyte in biological fluids by chromatography techniques. It may also be used as an internal standard for the thiol drug derivatization before high-performance liquid chromatography (HPLC) determination in pharmaceutical formulations by HPLC.

General description

2-Mercaptopropionic acid is a primary metabolite of tiopronin, a drug prescribed for the treatment of cystinuria and, rheumatoid arthritis.

Hazard Classifications

Skin Corr. 1B

pictograms

Corrosion
GHS05

signalword

Danger

hcodes

H314

Storage Class

6.1B - Non-combustible acute toxic Cat. 1 and 2 / very toxic hazardous materials

wgk

WGK 1

flash_point_f

190.4 °F - closed cup

flash_point_c

88 °C - closed cup

Regulatory Information

危险化学品
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Certificates of Analysis (COA)

Lot/Batch Number
BCCF6313
BCBX3993
BCBW7086
BCBQ4240V
BCBQ4240

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Determination of 2-mercaptopropionylglycine and its metabolite, 2-mercaptopropionic acid, in plasma by ion-pair reversed-phase high-performance liquid chromatography with post-column derivatization
Leroy P, et al.
Journal of Chromatography. B, Biomedical Sciences and Applications, 564(1), 258-265 (1991)
Determination of N-acetylcysteine and thioglycolic acid in human urine
Kusmierek K and Bald Edward
Chromatographia, 67(1-2), 23-29 (2008)
Determination of thiol drugs in pharmaceutical formulations as their S-pyridinium derivatives by high-performance liquid chromatography with ultraviolet detection
Bald E, et al.
Fresenius Journal of Analytical Chemistry, 358(4), 554-555 (1997)
Chemiluminescence determination of tiopronin and its metabolite 2-mercaptopropionic acid in human urine by HPLC coupled with flow injection
Zhao Y, et al.
Chromatographia, 44(1-2), 31-36 (1997)

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