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Key Documents

W318000

Sigma-Aldrich

2-Mercaptopropionic acid

≥95%, FG

Synonym(s):

Thiolactic acid, 2-Mercaptopropionic acid

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About This Item

Linear Formula:
CH3CH(SH)COOH
CAS Number:
Molecular Weight:
106.14
FEMA Number:
3180
Beilstein:
506218
EC Number:
Council of Europe no.:
4156
MDL number:
UNSPSC Code:
12164502
PubChem Substance ID:
Flavis number:
12.039
NACRES:
NA.21

biological source

synthetic

Quality Level

grade

FG
Fragrance grade
Halal
Kosher

Agency

follows IFRA guidelines
meets purity specifications of JECFA

reg. compliance

EU Regulation 1223/2009
EU Regulation 1334/2008 & 872/2012

Assay

≥95%

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)

flavors and fragrances

Documentation

see Safety & Documentation for available documents

food allergen

no known allergens

fragrance allergen

no known allergens

Organoleptic

meaty; roasted; sulfurous

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 synthetic flavor and skin sensitizer used in cosmetics, food and household care products.

Application

  • Improving the Efficacy of ALA-Based Photodynamic Therapy: 2-MPA was used in the one-step aqueous synthesis of anionic and cationic AgInS2 quantum dots, demonstrating a significant enhancement in the therapeutic efficacy of aminolevulinic acid-based photodynamic cancer therapy (Hashemkhani et al., 2022).

  • Fabrication of Hierarchical Core-Shell Heteroarchitectures: 2-MPA facilitates the assembly of Au@ZnO heterostructures for photocatalytic applications, underscoring its pivotal role in the synthesis of complex nanostructured materials (Pączkowski & Gawdzik, 2021).

  • Investigating Genotoxic and Apoptotic Pathways: This study uses 2-MPA coated silver sulfide quantum dots to explore their effects on genotoxic and apoptotic pathways in vitro, providing insights into the biocompatibility and safety profile of these nanomaterials (Ozkan Vardar et al., 2018).

Pictograms

Corrosion

Signal Word

Danger

Hazard Statements

Hazard Classifications

Skin Corr. 1B

Storage Class Code

6.1A - 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

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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RIFM fragrance ingredient safety assessment, 2-mercaptopropionic acid, CAS Registry Number 79-42-5
Api AM, et al.
Food And Chemical Toxicology, 111987-111987 (2021)
The suitability of barley and corn starches in their native and chemically modified forms for volatile meat flavor encapsulation
Jeon Y-J, et al.
Food Research International, 36(4), 349-355 (2003)
Y Arakawa et al.
Journal of clinical microbiology, 38(1), 40-43 (2000-01-05)
A simple disk diffusion test was constructed for detection of IMP-1-type metallo-beta-lactamase-producing gram-negative bacteria. Two Kirby-Bauer disks containing ceftazidime (CAZ) and a filter disk containing a metallo-beta-lactamase inhibitor were used in this test. Several IMP-1 inhibitors such as thiol compounds
T Teerlink et al.
Clinica chimica acta; international journal of clinical chemistry, 218(2), 159-168 (1993-09-30)
A high-performance liquid chromatographic method for the determination of glutamine in biological samples is presented. Glutamine was derivatized with ortho-phthalaldehyde reagent containing 3-mercaptopropionic acid and separated by reversed phase chromatography on a C18 column containing 3-microns particles. No interference from
Eun-Jee Oh et al.
Journal of microbiological methods, 54(3), 411-418 (2003-07-05)
To identify the metallo-beta-lactamases (MBLs) prevalent in Korea, a total of 130 clinical isolates of Pseudomonas aeruginosa and Acinetobacter baumannii (99 P. aeruginosa and 31 A. baumannii) with a reduced susceptibility to imipenem (IPM) and/or ceftazidime (CAZ) was subjected to

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