Numidargistat
An aminopyrrolidine that is pyrrolidine substituted by (2S)-2-aminopropanoyl, amino, carboxy, and 3-boronopropyl groups at positions 1, 3, 3, and 4 (the 3R,4S-stereoisomer). It is a selective arginase inhibitor being developed by Calithera Biosciences for the treatment of solid tumours. — ChEBI
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Identity & molecular properties
Source-linked values| CAS number | 2095732-06-0 | ChEBI ↗ |
| Molecular formula | C11H22BN3O5 | ChEBI ↗ |
| Molar mass | 287.125 g/mol | ChEBI ↗ |
| Monoisotopic mass | 287.16525 Da | ChEBI ↗ |
| Formal charge | 0 | ChEBI ↗ |
| ChEBI identifier | CHEBI:195556 | ChEBI ↗ |
Cross-source molecular data
PubChem| Molar mass | 287.12 g/mol | PubChem ↗ |
| Exact mass | 287.1652510 Da | PubChem ↗ |
| Topological polar surface area (Ų) | 150 | PubChem ↗ |
| H-bond donors | 5 | PubChem ↗ |
| H-bond acceptors | 7 | PubChem ↗ |
| Rotatable bonds | 6 | PubChem ↗ |
PubChem computed values are shown separately from the ChEBI record. An exact InChIKey match was used to connect the records. Molecular descriptors do not describe a supplied product’s purity, particle size or performance.
Names & structural identifiers
Copy any identifiernumidargistat(3R,4S)-1-L-alanyl-3-amino-4-(3-boronopropyl)pyrrolidine-3-carboxylic acidZZJLMZYUGLJBSO-LAEOZQHASA-NC[C@H](N)C(=O)N1C[C@H](CCCB(O)O)[C@](N)(C(=O)O)C1InChI=1S/C11H22BN3O5/c1-7(13)9(16)15-5-8(3-2-4-12(19)20)11(14,6-15)10(17)18/h7-8,19-20H,2-6,13-14H2,1H3,(H,17,18)/t7-,8-,11-/m0/s1Names & synonyms
Names are supplied by ChEBI. Trade names and related synonyms may describe a broader product context.
Classification & relationships
ChEBI ontologyRoles recorded in ChEBI
Database role annotations describe reported biological or chemical roles; they are not product approvals or recommendations for use.
Mass ↔ amount of substance
Calculated from sourced massUses 287.125 g/mol from ChEBI. Assumes the substance described by this record; no purity or concentration correction is applied.
Elemental composition
Theoretical mass fractionsCONHBCalculated theoretical mass fractions from the reported formula and PubChem periodic-table atomic masses. These are not assay or purity results.
Research & patent references
Selected source associationsSources & record history
Checked 27 Sep 2026Release 255, 9 September 2026. ChEBI three-star (manually annotated) source entry. View original record ↗ · CC BY 4.0
PubCAS formats source data, connects references and computes explicitly labelled conversions. CAS cross-references are supplied by ChEBI; they do not constitute CAS verification or endorsement.