2-Ethyl-3,5(6)-dimethylpyrazine - analytical standard, mixture of isomers , CAS No.27043-05-6

CAS: 27043-05-6 Cat. No.: E133774 Molecular Weight: 136.19 EC Number: 248-182-2
AVAILABLE TO ORDER
GRADE & PURITY Analytical standard ? Analytical standard — certified-purity material for quantitative calibration. Use to prepare calibration standards and validate analytical methods. mixture of isomers
Synonyms
2-ETHYL-3,5-DIMETHYLPYRAZINE|13925-07-0|3,5-Dimethyl-2-ethylpyrazine|Pyrazine, 2-ethyl-3,5-dimethyl-|27043-05-6|3-Ethyl-2,6-dimethylpyrazine|2,6-Dimethyl-3-ethylpyrazine|55031-15-7|FEMA 3150|2-Ethyl-3,5-dimethyl pyrazine|Pyrazine, 2,6-dimethyl-3-ethyl-|2-
Storage
Store at 2-8°C
Shipped In
Wet ice
 ·  off list, applied to all prices below.
Size
Status
Price
Qty
100mg
E133774-100mg
2

$148.90

$206.90
Save $58.00 (28.03%)
500mg
E133774-500mg
2

$582.90

$790.90
Save $208.00 (26.30%)
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Why this grade

analytical standard, mixture of isomers Analytical standard for sensitive chromatographic and analytical workflows requiring minimal baseline interference.

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Storage & shipping

Store at 2-8°C Ships Wet ice Check lot-specific COA for exact specifications.

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Quality documents

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

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Literature proof

Cited in 2 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.

Specifications

Synonyms
2-ETHYL-3, 5-DIMETHYLPYRAZINE | 13925-07-0 | 3, 5-Dimethyl-2-ethylpyrazine | Pyrazine, 2-ethyl-3, 5-dimethyl- | 27043-05-6 | 3-Ethyl-2, 6-dimethylpyrazine | 2, 6-Dimethyl-3-ethylpyrazine | 55031-15-7 | FEMA 3150 | 2-Ethyl-3, 5-dimethyl pyrazine | Pyrazine, 2, 6-dimethyl-3-ethyl- | 2-
Specifications & Purity
analytical standard, mixture of isomers
Storage
Store at 2-8°C
Shipped In
Wet ice
This product requires cold chain shipping. Ground and other economy services are not available.
Grade
Analytical standard
Names and Identifiers
Canonical SmilesCCC1=NC=C(N=C1C)C
IUPAC Name2-ethyl-3,5-dimethylpyrazine
InChIKeyJZBCTZLGKSYRSF-UHFFFAOYSA-N
INCHI1S/C8H12N2/c1-4-8-7(3)10-6(2)5-9-8/h5H,4H2,1-3H3
Isomeric SMILES CCC1=NC=C(N=C1C)C
WGK Germany 3
Molecular Weight 136.19
Reaxy-Rn 636984
Reaxys-RN_link_address https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=636984&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.

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📊 Datasheet

Quick-reference summary of product specifications and applications.

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🔬 Specification Sheet

Full quality attributes and acceptance criteria for this grade.

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Advanced Data

Taxonomic Classification

Taxonomy Tree

KingdomOrganic compounds
SuperclassOrganoheterocyclic compounds
ClassDiazines
SubclassPyrazines
Intermediate Tree Nodes Not available
Direct ParentPyrazines
Alternative Parents Heteroaromatic compounds  Azacyclic compounds  Organopnictogen compounds  Organonitrogen compounds  Hydrocarbon derivatives  
Molecular FrameworkAromatic heteromonocyclic compounds
Substituents Pyrazine - Heteroaromatic compound - Azacycle - Organic nitrogen compound - Organopnictogen compound - Hydrocarbon derivative - Organonitrogen compound - Aromatic heteromonocyclic compound
DescriptionThis compound belongs to the class of organic compounds known as pyrazines. These are compounds containing a pyrazine ring, which is a six-member aromatic heterocycle, that consists of two nitrogen atoms (at positions 1 and 4) and four carbon atoms.
External Descriptors Not available
3D Structure
Interactive Chemical Structure Model





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.

4 results found

Lot NumberCertificate TypeDateItem
D23141559Certificate of AnalysisJan 15, 2025 E133774
D23141565Certificate of AnalysisJan 15, 2025 E133774
F1706082Certificate of AnalysisJan 19, 2023 E133774
I2222529Certificate of AnalysisSep 29, 2022 E133774
Chemical and Physical Properties
Refractive Index1.5015
Flash Point(°F)156.2 °F
Flash Point(°C)69 °C
Boil Point(°C)180-181 °C
Molecular Weight136.190 g/mol
XLogP31.500
Hydrogen Bond Donor Count0
Hydrogen Bond Acceptor Count2
Rotatable Bond Count1
Exact Mass136.1 Da
Monoisotopic Mass136.1 Da
Topological Polar Surface Area25.800 Ų
Heavy Atom Count10
Formal Charge0
Complexity103.000
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
Documents & Articles
Citations of This Product
References
1. Huiying Zhang, Dian Huang, Dandan Pu, Yuyu Zhang, Haitao Chen, Baoguo Sun, Fazheng Ren.  (2020)  Multivariate relationships among sensory attributes and volatile components in commercial dry porcini mushrooms (Boletus edulis).  FOOD RESEARCH INTERNATIONAL,      [PMID:32466923] [10.1016/j.foodres.2020.109112]
2. Huiying Zhang, Dandan Pu, Baoguo Sun, Fazheng Ren, Yuyu Zhang, Haitao Chen.  (2018)  Characterization and comparison of key aroma compounds in raw and dry porcini mushroom (Boletus edulis) by aroma extract dilution analysis, quantitation and aroma recombination experiments.  FOOD CHEMISTRY,      [PMID:29655732] [10.1016/j.foodchem.2018.03.056]
Solution Calculators
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