XL019 - Moligand™, ≥98% , Inhibitor of Janus kinase 1;Inhibitor of Janus kinase 2;Inhibitor of Janus kinase 3, CAS No.945755-56-6, Inhibitor of Janus kinase 1;Inhibitor of Janus kinase 2;Inhibitor of Janus kinase 3

CAS: 945755-56-6 Cat. No.: X127151 Molecular Weight: 444.53 EC Number: 111-689-3 PubChem CID: 57990869

COA

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XL019 - Moligand™, ≥98% CAS No(945755-56-6) by Aladdin Scientific

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AVAILABLE TO ORDER

GRADE & PURITY Moligand™ ? ≥98%

Synonyms

Storage

Store at -20°C

Shipped In

Ice chest + Ice pads

Specifications Names and Identifiers Documentation Advanced Data Taxonomic Classification 3D Structure Associated Targets(Human) Associated Targets(non-human) Mechanisms of Action Certificates（CoA,COO,BSE/TSE and Analysis Chart) Chemical and Physical Properties Solution Calculators Reviews

🧪

Why this grade

Moligand™, ≥98% Moligand™ 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

Specifications & Purity

Moligand™, ≥98%

Biochemical and Physiological Mechanisms

Description:
IC50 Value: 2.2 nM (JAK2); 214.2 nM (JAK3) [1]
XL019 is a potent and selective JAK2 inhibitor. XL019 shows good biochemical and cellular potency against JAK2 with good selectivity against the Janus Kinase family as

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.

Grade

Moligand™

Action Type

INHIBITOR

Mechanism of action

Inhibitor of Janus kinase 1;Inhibitor of Janus kinase 2;Inhibitor of Janus kinase 3

Purity

≥98%

Names and Identifiers

Pubchem Sid	504771647
Pubchem Sid Url	https://pubchem.ncbi.nlm.nih.gov/substance/504771647
Canonical Smiles	C1CC(NC1)C(=O)NC2=CC=C(C=C2)C3=NC(=NC=C3)NC4=CC=C(C=C4)N5CCOCC5
IUPAC Name	(2S)-N-[4-[2-(4-morpholin-4-ylanilino)pyrimidin-4-yl]phenyl]pyrrolidine-2-carboxamide
InChIKey	ISOCDPQFIXDIMS-QHCPKHFHSA-N
INCHI	1S/C25H28N6O2/c32-24(23-2-1-12-26-23)28-19-5-3-18(4-6-19)22-11-13-27-25(30-22)29-20-7-9-21(10-8-20)31-14-16-33-17-15-31/h3-11,13,23,26H,1-2,12,14-17H2,(H,28,32)(H,27,29,30)/t23-/m0/s1
Isomeric SMILES	C1C[C@H](NC1)C(=O)NC2=CC=C(C=C2)C3=NC(=NC=C3)NC4=CC=C(C=C4)N5CCOCC5
PubChem CID	57990869
Molecular Weight	444.53

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

Kingdom Organic compounds
- Superclass Organic acids and derivatives
  - Class Carboxylic acids and derivatives
    - Subclass Amino acids, peptides, and analogues
      - Level5 Amino acids and derivatives
        Level6 Alpha amino acids and derivatives
        Level7 Proline and derivatives

Kingdom	Organic compounds
Superclass	Organic acids and derivatives
Class	Carboxylic acids and derivatives
Subclass	Amino acids, peptides, and analogues
Intermediate Tree Nodes	Amino acids and derivatives - Alpha amino acids and derivatives
Direct Parent	Proline and derivatives
Alternative Parents	Phenylpyrimidines Phenylmorpholines Alpha amino acid amides Anilides Pyrrolidinecarboxamides N-arylamides Dialkylarylamines Aniline and substituted anilines Aminopyrimidines and derivatives Heteroaromatic compounds Secondary carboxylic acid amides Oxacyclic compounds Dialkylamines Azacyclic compounds Dialkyl ethers Hydrocarbon derivatives Carbonyl compounds Organic oxides
Molecular Framework	Aromatic heteromonocyclic compounds
Substituents	Proline or derivatives - Alpha-amino acid amide - Phenylmorpholine - 4-phenylpyrimidine - Anilide - Pyrrolidine carboxylic acid or derivatives - Pyrrolidine-2-carboxamide - N-arylamide - Dialkylarylamine - Aniline or substituted anilines - Aminopyrimidine - Monocyclic benzene moiety - Morpholine - Benzenoid - Oxazinane - Pyrimidine - Heteroaromatic compound - Pyrrolidine - Carboxamide group - Tertiary amine - Secondary carboxylic acid amide - Secondary amine - Oxacycle - Azacycle - Dialkyl ether - Secondary aliphatic amine - Ether - Organoheterocyclic compound - Hydrocarbon derivative - Carbonyl group - Amine - Organonitrogen compound - Organooxygen compound - Organic nitrogen compound - Organic oxygen compound - Organic oxide - Aromatic heteromonocyclic compound
Description	This compound belongs to the class of organic compounds known as proline and derivatives. These are compounds containing proline or a derivative thereof resulting from reaction of proline at the amino group or the carboxy group, or from the replacement of any hydrogen of glycine by a heteroatom.
External Descriptors	Not available
1. Djoumbou Feunang Y, Eisner R, Knox C, Chepelev L, Hastings J, Owen G, Fahy E, Steinbeck C, Subramanian S, Bolton E, Greiner R, and Wishart DS. ClassyFire: Automated Chemical Classification With A Comprehensive, Computable Taxonomy. Journal of Cheminformatics, 2016, 8:61. DOI: 10.1186/s13321-016-0174-y

3D Structure

Associated Targets(Human)

JAK3 Tclin Tyrosine-protein kinase JAK3 (1 Activities)

Discover Target: JAK3

Activity Type	Activity Value -log(M)	Mechanism of Action	Activity Reference	Publications (PubMed IDs)

JAK1 Tclin Tyrosine-protein kinase JAK1 (1 Activities)

Discover Target: JAK1

Activity Type	Activity Value -log(M)	Mechanism of Action	Activity Reference	Publications (PubMed IDs)

JAK2 Tclin Tyrosine-protein kinase JAK2 (1 Activities)

Discover Target: JAK2

Activity Type	Activity Value -log(M)	Mechanism of Action	Activity Reference	Publications (PubMed IDs)

ABL1 Tclin Tyrosine-protein kinase ABL (18331 Activities)

Discover Target: ABL1

Activity Type	Relation	Activity value	Units	Action Type	Journal	PubMed Id	doi	Assay Aladdin ID

CSNK2A1 Tchem Casein kinase II alpha (3512 Activities)

Discover Target: CSNK2A1

Activity Type	Relation	Activity value	Units	Action Type	Journal	PubMed Id	doi	Assay Aladdin ID

DAPK3 Tchem Death-associated protein kinase 3 (2108 Activities)

Discover Target: DAPK3

Activity Type	Relation	Activity value	Units	Action Type	Journal	PubMed Id	doi	Assay Aladdin ID

NQO2 Tchem Quinone reductase 2 (885 Activities)

Discover Target: NQO2

Activity Type	Relation	Activity value	Units	Action Type	Journal	PubMed Id	doi	Assay Aladdin ID

MAPK14 Tchem MAP kinase p38 alpha (12866 Activities)

Discover Target: MAPK14

Activity Type	Relation	Activity value	Units	Action Type	Journal	PubMed Id	doi	Assay Aladdin ID

GSK3B Tclin Glycogen synthase kinase-3 beta (11785 Activities)

Discover Target: GSK3B

Activity Type	Relation	Activity value	Units	Action Type	Journal	PubMed Id	doi	Assay Aladdin ID

MAP2K6 Tchem Dual specificity mitogen-activated protein kinase kinase 6 (1284 Activities)

Discover Target: MAP2K6

Activity Type	Relation	Activity value	Units	Action Type	Journal	PubMed Id	doi	Assay Aladdin ID

FGFR2 Tclin Fibroblast growth factor receptor 2 (3405 Activities)

Discover Target: FGFR2

Activity Type	Relation	Activity value	Units	Action Type	Journal	PubMed Id	doi	Assay Aladdin ID

FGFR1 Tclin Fibroblast growth factor receptor 1 (9149 Activities)

Discover Target: FGFR1

Activity Type	Relation	Activity value	Units	Action Type	Journal	PubMed Id	doi	Assay Aladdin ID

STK3 Tchem Serine/threonine-protein kinase MST2 (3069 Activities)

Discover Target: STK3

Activity Type	Relation	Activity value	Units	Action Type	Journal	PubMed Id	doi	Assay Aladdin ID

CSNK1D Tchem Casein kinase I delta (4546 Activities)

Discover Target: CSNK1D

Activity Type	Relation	Activity value	Units	Action Type	Journal	PubMed Id	doi	Assay Aladdin ID

CAMK2B Tchem CaM kinase II beta (1626 Activities)

Discover Target: CAMK2B

Activity Type	Relation	Activity value	Units	Action Type	Journal	PubMed Id	doi	Assay Aladdin ID

SRC Tclin Tyrosine-protein kinase SRC (10310 Activities)

Discover Target: SRC

Activity Type	Relation	Activity value	Units	Action Type	Journal	PubMed Id	doi	Assay Aladdin ID

CHEK2 Tchem Serine/threonine-protein kinase Chk2 (4015 Activities)

Discover Target: CHEK2

Activity Type	Relation	Activity value	Units	Action Type	Journal	PubMed Id	doi	Assay Aladdin ID

AKT3 Tchem Serine/threonine-protein kinase AKT3 (3157 Activities)

Discover Target: AKT3

Activity Type	Relation	Activity value	Units	Action Type	Journal	PubMed Id	doi	Assay Aladdin ID

PIM1 Tchem Serine/threonine-protein kinase PIM1 (9629 Activities)

Discover Target: PIM1

Activity Type	Relation	Activity value	Units	Action Type	Journal	PubMed Id	doi	Assay Aladdin ID

RPS6KA5 Tchem Ribosomal protein S6 kinase alpha 5 (3355 Activities)

Discover Target: RPS6KA5

Activity Type	Relation	Activity value	Units	Action Type	Journal	PubMed Id	doi	Assay Aladdin ID

RPS6KA1 Tchem Ribosomal protein S6 kinase alpha 1 (2796 Activities)

Discover Target: RPS6KA1

Activity Type	Relation	Activity value	Units	Action Type	Journal	PubMed Id	doi	Assay Aladdin ID

CSNK1E Tclin Casein kinase I epsilon (1412 Activities)

Discover Target: CSNK1E

Activity Type	Relation	Activity value	Units	Action Type	Journal	PubMed Id	doi	Assay Aladdin ID

CAMK4 Tbio CaM kinase IV (2116 Activities)

Discover Target: CAMK4

Activity Type	Relation	Activity value	Units	Action Type	Journal	PubMed Id	doi	Assay Aladdin ID

MAP2K4 Tchem Dual specificity mitogen-activated protein kinase kinase 4 (1051 Activities)

Discover Target: MAP2K4

Activity Type	Relation	Activity value	Units	Action Type	Journal	PubMed Id	doi	Assay Aladdin ID

MAPK13 Tchem MAP kinase p38 delta (2605 Activities)

Discover Target: MAPK13

Activity Type	Relation	Activity value	Units	Action Type	Journal	PubMed Id	doi	Assay Aladdin ID

MAPKAPK2 Tchem MAP kinase-activated protein kinase 2 (4814 Activities)

Discover Target: MAPKAPK2

Activity Type	Relation	Activity value	Units	Action Type	Journal	PubMed Id	doi	Assay Aladdin ID

DAPK1 Tchem Death-associated protein kinase 1 (1664 Activities)

Discover Target: DAPK1

Activity Type	Relation	Activity value	Units	Action Type	Journal	PubMed Id	doi	Assay Aladdin ID

MAPK9 Tchem c-Jun N-terminal kinase 2 (4655 Activities)

Discover Target: MAPK9

Activity Type	Relation	Activity value	Units	Action Type	Journal	PubMed Id	doi	Assay Aladdin ID

MAPK10 Tchem c-Jun N-terminal kinase 3 (3396 Activities)

Discover Target: MAPK10

Activity Type	Relation	Activity value	Units	Action Type	Journal	PubMed Id	doi	Assay Aladdin ID

CAMK2D Tchem CaM kinase II delta (2813 Activities)

Discover Target: CAMK2D

Activity Type	Relation	Activity value	Units	Action Type	Journal	PubMed Id	doi	Assay Aladdin ID

CDK2 Tchem Cyclin-dependent kinase 2 (9050 Activities)

Discover Target: CDK2

Activity Type	Relation	Activity value	Units	Action Type	Journal	PubMed Id	doi	Assay Aladdin ID

AOX1 Tchem Aldehyde oxidase (429 Activities)

Discover Target: AOX1

Activity Type	Relation	Activity value	Units	Action Type	Journal	PubMed Id	doi	Assay Aladdin ID

DYRK1A Tchem Dual-specificity tyrosine-phosphorylation regulated kinase 1A (6484 Activities)

Discover Target: DYRK1A

Activity Type	Relation	Activity value	Units	Action Type	Journal	PubMed Id	doi	Assay Aladdin ID

MAPK8 Tchem c-Jun N-terminal kinase 1 (5038 Activities)

Discover Target: MAPK8

Activity Type	Relation	Activity value	Units	Action Type	Journal	PubMed Id	doi	Assay Aladdin ID

PHKG2 Tchem Phosphorylase kinase gamma subunit 2 (2281 Activities)

Discover Target: PHKG2

Activity Type	Relation	Activity value	Units	Action Type	Journal	PubMed Id	doi	Assay Aladdin ID

CSNK2A2 Tchem Casein kinase II alpha (prime) (1587 Activities)

Discover Target: CSNK2A2

Activity Type	Relation	Activity value	Units	Action Type	Journal	PubMed Id	doi	Assay Aladdin ID

MAP2K7 Tchem Dual specificity mitogen-activated protein kinase kinase 7 (1145 Activities)

Discover Target: MAP2K7

Activity Type	Relation	Activity value	Units	Action Type	Journal	PubMed Id	doi	Assay Aladdin ID

AURKA Tchem Serine/threonine-protein kinase Aurora-A (10240 Activities)

Discover Target: AURKA

Activity Type	Relation	Activity value	Units	Action Type	Journal	PubMed Id	doi	Assay Aladdin ID

GAK Tchem Serine/threonine-protein kinase GAK (1150 Activities)

Discover Target: GAK

Activity Type	Relation	Activity value	Units	Action Type	Journal	PubMed Id	doi	Assay Aladdin ID

AAK1 Tchem Adaptor-associated kinase (1053 Activities)

Discover Target: AAK1

Activity Type	Relation	Activity value	Units	Action Type	Journal	PubMed Id	doi	Assay Aladdin ID

MARK2 Tchem MAP/microtubule affinity-regulating kinase 2 (2524 Activities)

Discover Target: MARK2

Activity Type	Relation	Activity value	Units	Action Type	Journal	PubMed Id	doi	Assay Aladdin ID

PLK4 Tchem Serine/threonine-protein kinase PLK4 (1882 Activities)

Discover Target: PLK4

Activity Type	Relation	Activity value	Units	Action Type	Journal	PubMed Id	doi	Assay Aladdin ID

STK17B Tchem Serine/threonine-protein kinase 17B (773 Activities)

Discover Target: STK17B

Activity Type	Relation	Activity value	Units	Action Type	Journal	PubMed Id	doi	Assay Aladdin ID

STK10 Tchem Serine/threonine-protein kinase 10 (2119 Activities)

Discover Target: STK10

Activity Type	Relation	Activity value	Units	Action Type	Journal	PubMed Id	doi	Assay Aladdin ID

EPHA2 Tclin Ephrin type-A receptor 2 (3499 Activities)

Discover Target: EPHA2

Activity Type	Relation	Activity value	Units	Action Type	Journal	PubMed Id	doi	Assay Aladdin ID

TTK Tchem Dual specificity protein kinase TTK (2978 Activities)

Discover Target: TTK

Activity Type	Relation	Activity value	Units	Action Type	Journal	PubMed Id	doi	Assay Aladdin ID

CLK1 Tchem Dual specificty protein kinase CLK1 (2189 Activities)

Discover Target: CLK1

Activity Type	Relation	Activity value	Units	Action Type	Journal	PubMed Id	doi	Assay Aladdin ID

CLK3 Tchem Dual specificity protein kinase CLK3 (2711 Activities)

Discover Target: CLK3

Activity Type	Relation	Activity value	Units	Action Type	Journal	PubMed Id	doi	Assay Aladdin ID

BMX Tchem Tyrosine-protein kinase BMX (1995 Activities)

Discover Target: BMX

Activity Type	Relation	Activity value	Units	Action Type	Journal	PubMed Id	doi	Assay Aladdin ID

NEK2 Tchem Serine/threonine-protein kinase NEK2 (3514 Activities)

Discover Target: NEK2

Activity Type	Relation	Activity value	Units	Action Type	Journal	PubMed Id	doi	Assay Aladdin ID

EPHA5 Tchem Ephrin type-A receptor 5 (1056 Activities)

Discover Target: EPHA5

Activity Type	Relation	Activity value	Units	Action Type	Journal	PubMed Id	doi	Assay Aladdin ID

EPHB1 Tchem Ephrin type-B receptor 1 (840 Activities)

Discover Target: EPHB1

Activity Type	Relation	Activity value	Units	Action Type	Journal	PubMed Id	doi	Assay Aladdin ID

EPHA4 Tchem Ephrin type-A receptor 4 (2022 Activities)

Discover Target: EPHA4

Activity Type	Relation	Activity value	Units	Action Type	Journal	PubMed Id	doi	Assay Aladdin ID

Associated Targets(non-human)

Mapk1 MAP kinase ERK2 (650 Activities)

Discover Target: Mapk1

Activity Type	Relation	Activity value	Units	Action Type	Journal	PubMed Id	doi	Assay Aladdin ID

Hdac6 Histone deacetylase 6 (222 Activities)

Discover Target: Hdac6

Activity Type	Relation	Activity value	Units	Action Type	Journal	PubMed Id	doi	Assay Aladdin ID

Fgfr3 Fibroblast growth factor receptor 3 (21 Activities)

Discover Target: Fgfr3

Activity Type	Relation	Activity value	Units	Action Type	Journal	PubMed Id	doi	Assay Aladdin ID

rep Replicase polyprotein 1ab (378 Activities)

Discover Target: rep

Activity Type	Relation	Activity value	Units	Action Type	Journal	PubMed Id	doi	Assay Aladdin ID

SARS-CoV-2 (38078 Activities)

Explore this target

Activity Type	Relation	Activity value	Units	Action Type	Journal	PubMed Id	doi	Assay 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.

5 results found

Lot Number	Certificate Type	Date	Item
G2221406	Certificate of Analysis	Feb 04, 2026	X127151
G2221407	Certificate of Analysis	Feb 04, 2026	X127151
G2221452	Certificate of Analysis	Feb 04, 2026	X127151
G2221453	Certificate of Analysis	Feb 04, 2026	X127151
G2221454	Certificate of Analysis	Feb 04, 2026	X127151

Chemical and Physical Properties

Solubility	DMSO 16 mg/mL Water <1 mg/mL Ethanol <1 mg/mL
Molecular Weight	444.500 g/mol
XLogP3	2.800
Hydrogen Bond Donor Count	3
Hydrogen Bond Acceptor Count	7
Rotatable Bond Count	6
Exact Mass	444.227 Da
Monoisotopic Mass	444.227 Da
Topological Polar Surface Area	91.400 Å²
Heavy Atom Count	33
Formal Charge	0
Complexity	614.000
Isotope Atom Count	0
Defined Atom Stereocenter Count	1
Undefined Atom Stereocenter Count	0
Defined Bond Stereocenter Count	0
Undefined Bond Stereocenter Count	0
The total count of all stereochemical bonds	0
Covalently-Bonded Unit Count	1

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