3-Mercaptopropionic acid - ≥98% , CAS No.107-96-0

CAS: 107-96-0 Cat. No.: M103035 Formula: C3H6O2S Molecular Weight: 106.14 Beilstein Registry Number: 773807 EC Number: 203-537-0
AVAILABLE TO ORDER
GRADE & PURITY ≥98%
Synonyms
3-Sulfanylpropanoic acid | 3-Thiopropionic acid | 3-Mercaptopropanoic acid | beta-Mercaptopropionic acid | 2-Mercaptoethanecarboxylic acid | 3-Thiopropanoic acid | Mercaptopropionic acid | 3-mercpato- 3-thio-hydracrylic acid 3-thiohydracrylic acid | 3-thi
Storage
Room temperature,Argon charged
Shipped In
Normal
★
Size
Germany (EU)
USA*
Price
Qty
25g
M103035-25g
—
2 In stock

€8.59

€14.66
Save €6.07 (41.42%)
100g
M103035-100g
6 In stock
9 In stock

€13.80

€23.34
Save €9.55 (40.89%)
500g
M103035-500g
—
In stock ≥10
€42.43
Enter a quantity for the sizes you want to add.
🧪
Why this grade

≥98% for sensitive chromatographic and analytical workflows requiring minimal baseline interference.

🌡

Storage & shipping

Room temperature,Argon charged Ships Normal Check lot-specific COA for exact specifications.

📋

Quality documents

SDS, COA, datasheet, and spec sheet available for download. Lot-specific COA accessible via lot number lookup.

📚

Literature proof

Cited in 620 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.

Overview

Product Describtion:

3-Mercaptopropionic acid (3-MPA) is used as a self-assembled monolayer (SAM) with a thiol and carboxylic groups. It has short carbon chains and is mainly used as a capping agent on a variety of nanoparticles.

Product Application: 3-MPA is used to produce hydrophilic SAMs, which are terminated with carboxylic acids and can be further functionalized to introduce more complex end groups such as enzymes for biosensor applications. SAMs of 3-MPA are capped on ZnSe quantum dots for the electrochemical detection of dopamine. 3-MPA is used as a capping agent on CdTe quantum dot nanocrystals (QD NCs) for use as labeling materials in biomedical applications. It can also be used to modify the surface of iron oxide nanoparticles (Fe2O3) in the extraction and preconcentration of Al3+ and Cr3+ ions from different biological samples.

Specifications

Synonyms
3-Sulfanylpropanoic acid | 3-Thiopropionic acid | 3-Mercaptopropanoic acid | beta-Mercaptopropionic acid | 2-Mercaptoethanecarboxylic acid | 3-Thiopropanoic acid | Mercaptopropionic acid | 3-mercpato- 3-thio-hydracrylic acid 3-thiohydracrylic acid | 3-thi
Specifications & Purity
≥98%
Storage
Room temperature,Argon charged
Shipped In
Normal
Purity
≥98%
Names and Identifiers
Pubchem Sid
Pubchem Sid Url
https://pubchem.ncbi.nlm.nih.gov/substance/488180085
Canonical Smiles
C(CS)C(=O)O
IUPAC Name
3-sulfanylpropanoic acid
InChIKey
DKIDEFUBRARXTE-UHFFFAOYSA-N
INCHI
1S/C3H6O2S/c4-3(5)1-2-6/h6H,1-2H2,(H,4,5)
Isomeric SMILES
C(CS)C(=O)O
WGK Germany
1
RTECS
UF5270000
UN Number
2922
Molecular Weight
106.14
Beilstein
773807
Reaxy-Rn
773807
Reaxys-RN_link_address
https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=773807&ln=

Documentation

📋 Safety Data Sheet (SDS)

Comprehensive hazard, handling, storage, and regulatory compliance document.

<<<<<<< HEAD Download SDS → ======= Download SDS → >>>>>>> release248-p3

✅ Certificate of Analysis (COA)

Lot-specific quality data. Enter your lot number to retrieve the exact COA.

Look up COA →

📊 Datasheet

Quick-reference summary of product specifications and applications.

View datasheet →

🔬 Specification Sheet

Full quality attributes and acceptance criteria for this grade.

View spec sheet →

Advanced Data

Taxonomic Classification

Taxonomy Tree

KingdomOrganic compounds
SuperclassOrganic acids and derivatives
ClassCarboxylic acids and derivatives
SubclassCarboxylic acids
Intermediate Tree Nodes Not available
Direct ParentCarboxylic acids
Alternative Parents Monocarboxylic acids and derivatives  Alkylthiols  Organic oxides  Hydrocarbon derivatives  Carbonyl compounds  
Molecular FrameworkAliphatic acyclic compounds
Substituents Monocarboxylic acid or derivatives - Carboxylic acid - Alkylthiol - Organic oxygen compound - Organic oxide - Hydrocarbon derivative - Organosulfur compound - Organooxygen compound - Carbonyl group - Aliphatic acyclic compound
DescriptionThis compound belongs to the class of organic compounds known as carboxylic acids. These are compounds containing a carboxylic acid group with the formula -C(=O)OH.
External Descriptors mercaptopropanoic acid
3D Structure
Interactive Chemical Structure Model





Associated Targets(Human)
MMP3 Tchem Matrix metalloproteinase 3 (3433 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
Associated Targets(non-human)
blaZ Beta-lactamase (285 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
Staphylococcus aureus (210822 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
Escherichia coli (133304 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
Haemophilus influenzae (8812 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
Bacillus subtilis (32866 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
Bacillus cereus (7522 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
Mus musculus (284745 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
Mechanisms of Action
Certificates (CoA,COO,BSE/TSE and Analysis Chart)
C of A & Other Certificates(BSE/TSE, COO):
Analytical Chart:

Find and download the COA for your product by matching the lot number on the packaging.

48 results found

Lot NumberCertificate TypeDateItem
F2612282F2612282Certificate of AnalysisMay 27, 2026 M103035
F2612283F2612283Certificate of AnalysisMay 27, 2026 M103035
F2612285F2612285Certificate of AnalysisMay 27, 2026 M103035
F2612287F2612287Certificate of AnalysisMay 27, 2026 M103035
K2504509K2504509Certificate of AnalysisSep 11, 2025 M103035
K2504508K2504508Certificate of AnalysisSep 11, 2025 M103035
K2504507K2504507Certificate of AnalysisSep 11, 2025 M103035
K2504460K2504460Certificate of AnalysisSep 11, 2025 M103035
I2525704I2525704Certificate of AnalysisSep 11, 2025 M103035
I2525703I2525703Certificate of AnalysisSep 11, 2025 M103035
C2527513C2527513Certificate of AnalysisMar 13, 2025 M103035
C2527512C2527512Certificate of AnalysisMar 13, 2025 M103035
C2527443C2527443Certificate of AnalysisMar 13, 2025 M103035
C2527431C2527431Certificate of AnalysisMar 13, 2025 M103035
I2409044I2409044Certificate of AnalysisAug 29, 2024 M103035
I2409042I2409042Certificate of AnalysisAug 29, 2024 M103035
I2409056I2409056Certificate of AnalysisAug 29, 2024 M103035
K2414161K2414161Certificate of AnalysisAug 29, 2024 M103035
I2509364I2509364Certificate of AnalysisAug 17, 2024 M103035
I2509366I2509366Certificate of AnalysisAug 17, 2024 M103035
E2413390E2413390Certificate of AnalysisApr 03, 2024 M103035
J2414422J2414422Certificate of AnalysisApr 03, 2024 M103035
E2413392E2413392Certificate of AnalysisApr 03, 2024 M103035
E2413391E2413391Certificate of AnalysisApr 03, 2024 M103035
C2429625C2429625Certificate of AnalysisMar 13, 2024 M103035
D2411112D2411112Certificate of AnalysisMar 13, 2024 M103035
D2411111D2411111Certificate of AnalysisMar 13, 2024 M103035
C2429619C2429619Certificate of AnalysisMar 13, 2024 M103035
C2429618C2429618Certificate of AnalysisMar 13, 2024 M103035
C2429617C2429617Certificate of AnalysisMar 13, 2024 M103035
C2429610C2429610Certificate of AnalysisMar 13, 2024 M103035
C2429609C2429609Certificate of AnalysisMar 13, 2024 M103035
A2409381A2409381Certificate of AnalysisDec 25, 2023 M103035
A2409380A2409380Certificate of AnalysisDec 25, 2023 M103035
A2409382A2409382Certificate of AnalysisDec 25, 2023 M103035
A2409383A2409383Certificate of AnalysisDec 25, 2023 M103035
A2409384A2409384Certificate of AnalysisDec 25, 2023 M103035
A2409385A2409385Certificate of AnalysisDec 25, 2023 M103035
G2315728G2315728Certificate of AnalysisJun 28, 2023 M103035
G2315726G2315726Certificate of AnalysisJun 28, 2023 M103035
G2315724G2315724Certificate of AnalysisJun 28, 2023 M103035
G2315723G2315723Certificate of AnalysisJun 28, 2023 M103035
B2302304B2302304Certificate of AnalysisDec 28, 2021 M103035
B2215612B2215612Certificate of AnalysisDec 28, 2021 M103035
B2215585B2215585Certificate of AnalysisDec 28, 2021 M103035
B2215564B2215564Certificate of AnalysisDec 28, 2021 M103035
B2215563B2215563Certificate of AnalysisDec 28, 2021 M103035
E23291155E23291155Certificate of AnalysisDec 28, 2021 M103035
Chemical and Physical Properties
SolubilityMiscible with water, alcohol, benzene and ether.
SensitivityAir Sensitive Hygroscopic
x_freezing_point17 °C
x_refractive_index1.492
x_flash_point_drop_fahrenheit200.1 °F
x_flash_point_drop_centigrade93.4°C
x_boil_point_char110-111°C
x_melt_point_char15-18°C
Molecular Weight106.150 g/mol
XLogP30.400
Hydrogen Bond Donor Count2
Hydrogen Bond Acceptor Count3
Rotatable Bond Count2
Exact Mass106.009 Da
Monoisotopic Mass106.009 Da
Topological Polar Surface Area38.300 Ų
Heavy Atom Count6
Formal Charge0
Complexity52.800
Isotope Atom Count0
Defined Atom Stereocenter Count0
Undefined Atom Stereocenter Count0
Defined Bond Stereocenter Count0
Undefined Bond Stereocenter Count0
The total count of all stereochemical bonds0
Covalently-Bonded Unit Count1
FAQs and Articles
Citations of This Product
Solution Calculators
Reviews

Customer Reviews

Frequently Asked Questions

What is the purity of this product?
This product is supplied at ≥98% purity (chemical assay). Lot-specific values are stated on the Certificate of Analysis.
How should this product be stored?
Store at room temperature under argon. It is supplied under an argon blanket; reseal under inert gas after each use.
How is this product shipped?
This product ships under standard ambient conditions. No temperature-controlled packaging is required.
What are the CAS number, molecular formula and molecular weight?
The CAS Number is 107-96-0, the molecular formula is C3H6O2S, and the molecular weight is 106.14 g/mol. InChIKey DKIDEFUBRARXTE-UHFFFAOYSA-N.
What documentation is provided?
Available product documentation, including Certificates of Analysis (COA), Safety Data Sheets (SDS), and specification sheets, is shown in the product document area. Document availability and access follow the current site policy.

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