Tyrphostin B42
A monocarboxylic acid amide obtained by formal condensation of the carboxy group of (2E)-2-cyano-3-(3,4-dihydroxyphenyl)prop-2-enoic acid with the amino group of benzylamine. — ChEBI
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Identity & molecular properties
Source-linked values| CAS number | 133550-30-8 | ChEBI ↗ |
| Molecular formula | C17H14N2O3 | ChEBI ↗ |
| Molar mass | 294.31 g/mol | ChEBI ↗ |
| Monoisotopic mass | 294.10044 Da | ChEBI ↗ |
| Formal charge | 0 | ChEBI ↗ |
| ChEBI identifier | CHEBI:131968 | ChEBI ↗ |
Cross-source molecular data
PubChem| Molar mass | 294.30 g/mol | PubChem ↗ |
| Exact mass | 294.10044231 Da | PubChem ↗ |
| Computed XLogP | 2.4 | PubChem ↗ |
| Topological polar surface area (Ų) | 93.4 | PubChem ↗ |
| H-bond donors | 3 | PubChem ↗ |
| H-bond acceptors | 4 | PubChem ↗ |
| Rotatable bonds | 4 | 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 identifiertyrphostin B42(2E)-N-benzyl-2-cyano-3-(3,4-dihydroxyphenyl)prop-2-enamideTUCIOBMMDDOEMM-RIYZIHGNSA-NN#C/C(=Cc1ccc(O)c(O)c1)C(=O)NCc1ccccc1InChI=1S/C17H14N2O3/c18-10-14(8-13-6-7-15(20)16(21)9-13)17(22)19-11-12-4-2-1-3-5-12/h1-9,20-21H,11H2,(H,19,22)/b14-8+Names & 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 294.31 g/mol from ChEBI. Assumes the substance described by this record; no purity or concentration correction is applied.
Elemental composition
Theoretical mass fractionsCONHCalculated 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.