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| Activity Type | Activity Value -log(M) | Mechanism of Action | Activity Reference | Publications (PubMed IDs) |
|---|
Moligand™, ≥98% Moligand™ for sensitive chromatographic and analytical workflows requiring minimal baseline interference.
Store at -20°C Ships Ice chest + Ice pads Check lot-specific COA for exact specifications.
SDS, COA, datasheet, and spec sheet available for download. Lot-specific COA accessible via lot number lookup.
Cited in 0 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.
Information
Lanraplenib (GS-9876) Lanraplenib (GS-9876, GS-SYK) is a potent, highly selective and orally active inhibitor of Spleen Tyrosine Kinase (SYK) with IC50 of 9.5 nM. Lanraplenib inhibits SYK activity in platelets via the glycoprotein VI (GPVI) receptor without prolonging bleeding time (BT) in monkeys or humans.
Targets
GPVI receptor ; Syk (Cell-free assay) ; 9.5 nM
In vitro
GS-9876 inhibits anti-IgM stimulated phosphorylation of AKT, BLNK, BTK, ERK, MEK, and PKCδ in human B cells with EC50 values of 24–51 nM. Functionally, GS-9876 inhibits anti-IgM mediated CD69 and CD86 expression on B-cells (EC50=112±10 nM and 164±15 nM, respectively) and anti-IgM /anti-CD40 co-stimulated B cell proliferation (EC50=108±55 nM). In human macrophages, GS-9876 inhibits IC-stimulated TNFα and IL-1β release (EC50=121±77 nM and 9±17 nM, respectively). Anti-CD3/anti-CD28 stimulated T cell proliferation is weakly inhibited (EC50=1291±398 nM), with selectivity >10-fold versus the inhibition of B cell proliferation. In human blood, GS-9876 blocks SYK phosphorylation, CD69 expression on B cells, and CD63 expression in basophils.\xa0GS-9876 inhibits glycoprotein VI (GPVI)-induced phosphorylation of linker for activation of T cells and phospholipase Cγ2, platelet activation and aggregation in human whole blood, and platelet binding to collagen under arterial flow.
In vivo
GS-9876 demonstrates a dose-dependent improvement in clinical score and histopathology parameters with once-daily dosing in short and long term rat models of collagen-induced arthritis (CIA). Significant efficacy can be achieved with GS-9876 doses that produces trough pSYK inhibition of <50%. Ex vivo, GPVI-stimulated platelet aggregation is inhibited in GS-9876-treated monkeys without a concomitant increase in bleeding time (BT). Similarly, orally administered GS-9876 does not increase BT in humans.
Cell Research(from reference)
Cell lines:Human blood platelets
Concentrations:0.01 μM to 100 μM
Incubation Time:15 min
| ALogP | 1.211 |
|---|---|
| hba_count | 5 |
| HBD Count | 2 |
| Rotatable Bond | 5 |
| Pubchem Sid | 504772855 |
|---|---|
| Pubchem Sid Url | https://pubchem.ncbi.nlm.nih.gov/substance/504772855 |
| Canonical Smiles | C1CN(CCN1C2COC2)C3=CC=C(C=C3)NC4=NC(=CN5C4=NC=C5)C6=CN=CC(=N6)N |
| IUPAC Name | 6-(6-aminopyrazin-2-yl)-N-[4-[4-(oxetan-3-yl)piperazin-1-yl]phenyl]imidazo[1,2-a]pyrazin-8-amine |
| InChIKey | XCIGZBVOUQVIPI-UHFFFAOYSA-N |
| INCHI | 1S/C23H25N9O/c24-21-12-25-11-19(28-21)20-13-32-6-5-26-23(32)22(29-20)27-16-1-3-17(4-2-16)30-7-9-31(10-8-30)18-14-33-15-18/h1-6,11-13,18H,7-10,14-15H2,(H2,24,28)(H,27,29) |
| Isomeric SMILES | C1CN(CCN1C2COC2)C3=CC=C(C=C3)NC4=NC(=CN5C4=NC=C5)C6=CN=CC(=N6)N |
| Alternate CAS | 1800046-95-0 |
| Molecular Weight | 443.5 |
| Reaxy-Rn | 28256258 |
| Reaxys-RN_link_address | https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=28256258&ln= |
Comprehensive hazard, handling, storage, and regulatory compliance document.
Download SDS →Lot-specific quality data. Enter your lot number to retrieve the exact COA.
Look up COA →Full quality attributes and acceptance criteria for this grade.
View spec sheet →Taxonomy Tree
| Kingdom | Organic compounds |
|---|---|
| Superclass | Organoheterocyclic compounds |
| Class | Diazinanes |
| Subclass | Piperazines |
| Intermediate Tree Nodes | Not available |
| Direct Parent | Phenylpiperazines |
| Alternative Parents | N-arylpiperazines Imidazopyrazines Dialkylarylamines Aniline and substituted anilines N-alkylpiperazines Aminopyrazines N-substituted imidazoles Imidolactams Heteroaromatic compounds Trialkylamines Oxetanes Secondary amines Oxacyclic compounds Dialkyl ethers Azacyclic compounds Primary amines Organopnictogen compounds Hydrocarbon derivatives |
| Molecular Framework | Aromatic heteropolycyclic compounds |
| Substituents | N-arylpiperazine - Phenylpiperazine - Imidazopyrazine - Aniline or substituted anilines - Dialkylarylamine - Tertiary aliphatic/aromatic amine - N-alkylpiperazine - Aminopyrazine - Imidolactam - Benzenoid - Pyrazine - N-substituted imidazole - Monocyclic benzene moiety - Heteroaromatic compound - Imidazole - Azole - Tertiary aliphatic amine - Tertiary amine - Oxetane - Oxacycle - Azacycle - Secondary amine - Ether - Dialkyl ether - Organic nitrogen compound - Organic oxygen compound - Organopnictogen compound - Hydrocarbon derivative - Primary amine - Organooxygen compound - Organonitrogen compound - Amine - Aromatic heteropolycyclic compound |
| Description | This compound belongs to the class of organic compounds known as phenylpiperazines. These are compounds containing a phenylpiperazine skeleton, which consists of a piperazine bound to a phenyl group. |
| External Descriptors | Not available |
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Find and download the COA for your product by matching the lot number on the packaging.
| Lot Number | Certificate Type | Date | Item |
|---|---|---|---|
| Certificate of Analysis | Sep 23, 2025 | L414473 | |
| Certificate of Analysis | Jun 10, 2025 | L414473 | |
| Certificate of Analysis | Jun 10, 2025 | L414473 | |
| Certificate of Analysis | Jun 10, 2025 | L414473 | |
| Certificate of Analysis | Jun 10, 2025 | L414473 | |
| Certificate of Analysis | Jun 10, 2025 | L414473 |
| Solubility | Solubility (25°C) In vitro DMSO: 89 mg/mL (200.67 mM); Water: Insoluble; Ethanol: Insoluble; |
|---|---|
| DMSO(mg / mL) Max Solubility | 89 |
| DMSO(mM) Max Solubility | 200.676437429538 |
| Water(mg / mL) Max Solubility | <1 |
| Molecular Weight | 443.500 g/mol |
| XLogP3 | 1.400 |
| Hydrogen Bond Donor Count | 2 |
| Hydrogen Bond Acceptor Count | 9 |
| Rotatable Bond Count | 5 |
| Exact Mass | 443.218 Da |
| Monoisotopic Mass | 443.218 Da |
| Topological Polar Surface Area | 110.000 Ų |
| Heavy Atom Count | 33 |
| Formal Charge | 0 |
| Complexity | 635.000 |
| Isotope Atom Count | 0 |
| Defined Atom Stereocenter Count | 0 |
| 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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