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Merck

W318000

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:
79-42-5
Molecular Weight:
106.14
FEMA Number:
3180
Council of Europe no.:
4156
UNSPSC Code:
12164502
PubChem Substance ID:
24901535
Flavis number:
12.039
EC Number:
201-206-5
NACRES:
NA.21
MDL number:
MFCD00004862
Beilstein/REAXYS Number:
506218
Organoleptic:
meaty; roasted; sulfurous
Grade:
FG, Fragrance grade, Halal, Kosher
Biological source:
synthetic
Agency:
follows IFRA guidelines, meets purity specifications of JECFA
Food allergen:
no known allergens

Key Documents

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SMILES string

CC(S)C(O)=O

InChI key

PMNLUUOXGOOLSP-UHFFFAOYSA-N

InChI

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

biological source

synthetic

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

Quality Level

300, 400

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Related Categories

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
GHS05

signalword

Danger

hcodes

H314

Hazard Classifications

Skin Corr. 1B

Storage Class

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

ppe

Faceshields, Gloves, Goggles, type ABEK (EN14387) respirator filter

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Certificates of Analysis (COA)

Lot/Batch Number
SHBT3945
SHBT1923
SHBS2312
SHBS2311
SHBQ5393

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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)
Khoa Huynh et al.
Talanta, 218, 121109-121109 (2020-08-17)
Thiol compounds (R-SH) have many important biological functions and are principal controls of the speciation of several toxic metals in the environment. However, determining the concentration of thiols associated with environmental matrices is challenging due to the compounds' low abundance
P Leroy et al.
Journal of chromatography, 564(1), 258-265 (1991-03-08)
A simple and fast high-performance liquid chromatographic method was developed for the simultaneous measurement of 2-mercaptopropionylglycine (Tiopronine) and its metabolite (2-mercaptopropionic acid) in human plasma after the administration of a pharmaceutical dosage form (Acadione). The sample treatment before high-performance liquid
H/D exchange reactions in dinuclear iron thiolates as activity assay models of Fe-H2ase.
X Zhao et al.
Journal of the American Chemical Society, 123(39), 9710-9711 (2001-09-27)
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