GK921 - ≥98% , CAS No.1025015-40-0

CAS: 1025015-40-0 Cat. No.: G413442 Molecular Weight: 344.41
AVAILABLE TO ORDER
GRADE & PURITY ≥98%
Synonyms
Pyrido[2,​3-​b]​pyrazine,3-​(2-​phenylethynyl)​-​2-​[2-​(1-​pyrrolidinyl)​ethoxy]​- | 3-(2-Phenylethynyl)-2-[2-(1-pyrrolidinyl)ethoxy]pyrido[2,3-b]pyrazine, 3-(Phenylethynyl)-2-(2-(pyrrolidin-1-yl)ethoxy)pyrido[3,2-b]pyrazine, GK 921, GK-921
Storage
Store at -20°C
Shipped In
Ice chest + Ice pads
 ·  off list, applied to all prices below.
Size
Status
Price
Qty
1mg
G413442-1mg
8-12 wks(?) Production requires sourcing of materials. We appreciate your patience and understanding.
$64.90
2mg
G413442-2mg
3
$165.90
5mg
G413442-5mg
1
$231.90
10mg
G413442-10mg
1
$287.90
25mg
G413442-25mg
1
$387.90
50mg
G413442-50mg
1
$635.90
100mg
G413442-100mg
1
$1,081.90
200mg
G413442-200mg
8-12 wks(?) Production requires sourcing of materials. We appreciate your patience and understanding.
$1,690.90
Enter a quantity for the sizes you want to add.
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Why this grade

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

🌡

Storage & shipping

Store at -20°C Ships Ice chest + Ice pads 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 0 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.

Specifications

Synonyms
Pyrido[2, ​3-​b]​pyrazine, 3-​(2-​phenylethynyl)​-​2-​[2-​(1-​pyrrolidinyl)​ethoxy]​- | 3-(2-Phenylethynyl)-2-[2-(1-pyrrolidinyl)ethoxy]pyrido[2, 3-b]pyrazine, 3-(Phenylethynyl)-2-(2-(pyrrolidin-1-yl)ethoxy)pyrido[3, 2-b]pyrazine, GK 921, GK-921
Specifications & Purity
≥98%
Biochemical and Physiological Mechanisms
GK921 is a transglutaminase 2 (TGase 2) inhibitor with an IC50 of 8.93 μM under a modified assay condition.GK921 is an orally active transglutaminase 2 (TG2, TGase 2) inhibitor (IC50 = 7.71 μM) that effectively inhibits TG2-mediated I-κBα and p53 polymeri
Storage
Store at -20°C
Shipped In
Ice chest + Ice pads
This product requires cold chain shipping. Ground and other economy services are not available.
Action Type
INHIBITOR
Purity
≥98%
Product Properties
ALogP3.998
hba_count4
Rotatable Bond6
Names and Identifiers
Pubchem Sid488201742
Pubchem Sid Urlhttps://pubchem.ncbi.nlm.nih.gov/substance/488201742
Canonical SmilesC1CCN(C1)CCOC2=NC3=C(N=CC=C3)N=C2C#CC4=CC=CC=C4
IUPAC Name3-(2-phenylethynyl)-2-(2-pyrrolidin-1-ylethoxy)pyrido[2,3-b]pyrazine
InChIKeyMNYJJHBAEYKXEG-UHFFFAOYSA-N
INCHI1S/C21H20N4O/c1-2-7-17(8-3-1)10-11-19-21(26-16-15-25-13-4-5-14-25)24-18-9-6-12-22-20(18)23-19/h1-3,6-9,12H,4-5,13-16H2
Isomeric SMILES C1CCN(C1)CCOC2=NC3=C(N=CC=C3)N=C2C#CC4=CC=CC=C4
Molecular Weight 344.41
Reaxy-Rn 21826827
Reaxys-RN_link_address https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=21826827&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
ClassPyridopyrazines
SubclassNot available
Intermediate Tree Nodes Not available
Direct ParentPyridopyrazines
Alternative Parents Alkyl aryl ethers  Pyridines and derivatives  Pyrazines  N-alkylpyrrolidines  Benzene and substituted derivatives  Heteroaromatic compounds  Trialkylamines  Azacyclic compounds  Hydrocarbon derivatives  
Molecular FrameworkAromatic heteropolycyclic compounds
Substituents Pyridopyrazine - Alkyl aryl ether - Monocyclic benzene moiety - Pyrazine - Pyridine - Benzenoid - N-alkylpyrrolidine - Heteroaromatic compound - Pyrrolidine - Tertiary aliphatic amine - Tertiary amine - Azacycle - Ether - Hydrocarbon derivative - Organooxygen compound - Organonitrogen compound - Organic oxygen compound - Organic nitrogen compound - Amine - Aromatic heteropolycyclic compound
DescriptionThis compound belongs to the class of organic compounds known as pyridopyrazines. These are aromatic heteropolycyclic compounds containing a pyridine ring fused to a pyrazine ring.
External Descriptors Not available
3D Structure
Interactive Chemical Structure Model





Associated Targets(Human)
A549 (127892 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
Associated Targets(non-human)
Hdac6 Histone deacetylase 6 (222 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
rep Replicase polyprotein 1ab (378 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.

13 results found

Lot NumberCertificate TypeDateItem
C23231455Certificate of AnalysisJan 19, 2026 G413442
C23231459Certificate of AnalysisJan 19, 2026 G413442
C23231460Certificate of AnalysisJan 19, 2026 G413442
C23231461Certificate of AnalysisJan 19, 2026 G413442
C23231462Certificate of AnalysisJan 19, 2026 G413442
C23231463Certificate of AnalysisJan 19, 2026 G413442
C23231464Certificate of AnalysisJan 19, 2026 G413442
C23231465Certificate of AnalysisJan 19, 2026 G413442
C23231467Certificate of AnalysisJan 19, 2026 G413442
C2324003Certificate of AnalysisJan 19, 2026 G413442
C2324004Certificate of AnalysisJan 19, 2026 G413442
C2324009Certificate of AnalysisJan 19, 2026 G413442
C23231466Certificate of AnalysisDec 16, 2022 G413442

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Chemical and Physical Properties
SolubilitySolubility (25°C) In vitro DMSO: 33 mg/mL (95.81 mM);    
DMSO(mg / mL) Max Solubility33
DMSO(mM) Max Solubility95.8160332162248
Water(mg / mL) Max Solubility-1
Molecular Weight344.400 g/mol
XLogP33.400
Hydrogen Bond Donor Count0
Hydrogen Bond Acceptor Count5
Rotatable Bond Count6
Exact Mass344.164 Da
Monoisotopic Mass344.164 Da
Topological Polar Surface Area51.100 Ų
Heavy Atom Count26
Formal Charge0
Complexity501.000
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
Solution Calculators
Reviews

Customer Reviews

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