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Merck
CN

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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Product Name

2-Mercaptopropionic acid, ≥95%, FG

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

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).

General description

2-Mercaptopropionic acid is a synthetic flavor and skin sensitizer used in cosmetics, food and household care products.

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

Regulatory Information

危险化学品
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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)
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
Chemiluminescent determination of tiopronin and its metabolite, 2-mercaptopropionic acid, in urine by HPLC coupled with a flow injection set-up.
Y Zhao et al.
Biomedical chromatography : BMC, 11(2), 115-116 (1997-03-01)
L Chen et al.
Journal of medicinal chemistry, 40(6), 864-876 (1997-03-14)
Using as models the neurohypophyseal nonapeptide hormone oxytocin and its analogue deaminooxytocin, several directed routes to formation of sulfur-sulfur bridges have been developed and evaluated. The linear sequences (through common octapeptide-resin intermediates) were assembled smoothly on tris(alkoxy)benzylamide (PAL) poly(ethylene glycol)-polystyrene
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