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Merck
CN

16583

Supelco

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
Beilstein:
506218
EC Number:
201-206-5
MDL number:
MFCD00004862
UNSPSC Code:
85151701
PubChem Substance ID:
329751270
NACRES:
NA.24

Key Documents

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grade

analytical standard

Quality Level

100

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

SMILES string

CC(S)C(O)=O

InChI

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

InChI key

PMNLUUOXGOOLSP-UHFFFAOYSA-N

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General description

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

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.

Pictograms

Corrosion
GHS05

Signal Word

Danger

Hazard Statements

H314

Hazard Classifications

Skin Corr. 1B

Storage Class Code

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

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Certificates of Analysis (COA)

Lot/Batch Number
BCCF6313
BCBX3993
BCBW7086
BCBQ4240V
BCBQ4240

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