5-Methylthiophene-2-carboxaldehyde - ≥97%(GC) , CAS No.13679-70-4

CAS: 13679-70-4 Cat. No.: M157937 Molecular Weight: 126.17 Beilstein Registry Number: 106896 EC Number: 237-178-6
AVAILABLE TO ORDER
GRADE & PURITY ≥97%(GC)
Synonyms
BIDD:GT0340 | EINECS 237-178-6 | AS-15637 | NSC 87542 | W-108999 | 5-methyl thiophenecarboxaldehyde | 5-methyl-thiophene-2-aldehyde | 5-Methylthiophene-2-aldehyde | DTXCID8027169 | 5-Methyl-2-carboxaldehyde-thiophene | 5-METHYL-2-THIOPHENECARBOXALDEHYDE |
Storage
Store at 2-8°C,Argon charged
Shipped In
Wet ice
 ·  off list, applied to all prices below.
Size
Status
Price
Qty
5g
M157937-5g
3
$9.90
10g
M157937-10g
2
$10.90
25g
M157937-25g
3

$14.90

$22.90
Save $8.00 (34.93%)
50g
M157937-50g
3

$26.90

$40.90
Save $14.00 (34.23%)
100g
M157937-100g
3

$49.90

$74.90
Save $25.00 (33.38%)
500g
M157937-500g
1

$225.90

$338.90
Save $113.00 (33.34%)
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Why this grade

≥97%(GC) for sensitive chromatographic and analytical workflows requiring minimal baseline interference.

🌡

Storage & shipping

Store at 2-8°C,Argon charged Ships Wet ice 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 5 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.

Specifications

Synonyms
BIDD:GT0340 | EINECS 237-178-6 | AS-15637 | NSC 87542 | W-108999 | 5-methyl thiophenecarboxaldehyde | 5-methyl-thiophene-2-aldehyde | 5-Methylthiophene-2-aldehyde | DTXCID8027169 | 5-Methyl-2-carboxaldehyde-thiophene | 5-METHYL-2-THIOPHENECARBOXALDEHYDE |
Specifications & Purity
≥97%(GC)
Storage
Store at 2-8°C, Argon charged
Shipped In
Wet ice
This product requires cold chain shipping. Ground and other economy services are not available.
Purity
≥97%(GC)
Names and Identifiers
Pubchem Sid504753799
Pubchem Sid Urlhttps://pubchem.ncbi.nlm.nih.gov/substance/504753799
Canonical SmilesCC1=CC=C(S1)C=O
IUPAC Name5-methylthiophene-2-carbaldehyde
InChIKeyVAUMDUIUEPIGHM-UHFFFAOYSA-N
INCHI1S/C6H6OS/c1-5-2-3-6(4-7)8-5/h2-4H,1H3
Isomeric SMILES CC1=CC=C(S1)C=O
WGK Germany 3
Molecular Weight 126.17
Beilstein 106896
Reaxy-Rn 106896
Reaxys-RN_link_address https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=106896&ln=

Documentation

📋 Safety Data Sheet (SDS)

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

Download SDS →

✅ 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
SuperclassOrganoheterocyclic compounds
ClassThiophenes
Subclass2,5-disubstituted thiophenes
Intermediate Tree Nodes Not available
Direct Parent2,5-disubstituted thiophenes
Alternative Parents Aryl-aldehydes  Heteroaromatic compounds  Organic oxides  Hydrocarbon derivatives  
Molecular FrameworkAromatic heteromonocyclic compounds
Substituents 2,5-disubstituted thiophene - Aryl-aldehyde - Heteroaromatic compound - Organic oxygen compound - Organic oxide - Hydrocarbon derivative - Organooxygen compound - Aldehyde - Aromatic heteromonocyclic compound
DescriptionThis compound belongs to the class of organic compounds known as 2,5-disubstituted thiophenes. These are organic compounds containing a thiophene that is disubstituted at the C-2, and C5-positions.
External Descriptors Not available
3D Structure
Interactive Chemical Structure Model





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.

9 results found

Lot NumberCertificate TypeDateItem
F2207192Certificate of AnalysisMar 06, 2026 M157937
F2207195Certificate of AnalysisMar 06, 2026 M157937
F2207197Certificate of AnalysisMar 06, 2026 M157937
F2207199Certificate of AnalysisMar 06, 2026 M157937
F2207201Certificate of AnalysisMar 06, 2026 M157937
F2207208Certificate of AnalysisMar 06, 2026 M157937
J2009502Certificate of AnalysisJul 02, 2024 M157937
J2009503Certificate of AnalysisJul 02, 2024 M157937
J2009505Certificate of AnalysisJul 02, 2024 M157937
Chemical and Physical Properties
SolubilitySoluble in ether and ethanol.
SensitivityAir sensitive;Moisture sensitive
Refractive Index1.583
Flash Point(°F)172.4 °F
Flash Point(°C)87°C
Boil Point(°C)114°C/25 mmHg
Molecular Weight126.180 g/mol
XLogP31.800
Hydrogen Bond Donor Count0
Hydrogen Bond Acceptor Count2
Rotatable Bond Count1
Exact Mass126.014 Da
Monoisotopic Mass126.014 Da
Topological Polar Surface Area45.300 Ų
Heavy Atom Count8
Formal Charge0
Complexity92.500
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
Citations of This Product
References
1. Tong Zhou, Xue Xia, Heping Cui, Khizar Hayat, Xiaoming Zhang, Chi-Tang Ho.  (2023)  Promotion or Inhibition Effects of Exogenous Glutathione-Degraded Amino Acids on the Formation of 2,3-Butanedione and Pyrazines via Varied Pathways of Interaction with α-Dicarbonyl Compounds Derived from N-(1-Deoxy-d-xylulos-1-yl)-alanine.  JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY,      [PMID:37737140] [10.1021/acs.jafc.3c04424]
2. Tong Zhou, Xue Xia, Heping Cui, Yun Zhai, Foxin Zhang, Khizar Hayat, Xiaoming Zhang, Chi-Tang Ho.  (2023)  Cysteine-Induced pH-Dependent Formation of Thiols and Sulfides or 2-Acetylthiazole and Pyrazines during Thermal Treatment of N-(1-Deoxy-d-xylulos-1-yl)-alanine.  JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY,      [PMID:36696632] [10.1021/acs.jafc.2c08360]
3. Tong Zhou, Xue Xia, Heping Cui, Khizar Hayat, Xiaoming Zhang, Chi-Tang Ho.  (2022)  Competitive Formation of 2,3-Butanedione and Pyrazines through Intervention of Added Cysteine during Thermal Processing of Alanine-Xylose Amadori Compounds.  JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY,      [PMID:36444759] [10.1021/acs.jafc.2c07026]
4. Pei Yu, Yini Yang, Jinyuan Sun, Xiao Jia, Chang Zheng, Qi Zhou, Fenghong Huang.  (2021)  Identification of volatile sulfur-containing compounds and the precursor of dimethyl sulfide in cold-pressed rapeseed oil by GC–SCD and UPLC–MS/MS.  FOOD CHEMISTRY,      [PMID:34399272] [10.1016/j.foodchem.2021.130741]
5. Jianlin Peng, Meiling Qi.  (2018)  Poly(3-hexylthiophene) stationary phase for gas chromatographic separations of aliphatic and aromatic isomers.  JOURNAL OF CHROMATOGRAPHY A,      [PMID:30031537] [10.1016/j.chroma.2018.07.047]
Solution Calculators
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