8-Methylbenz[a]anthracene CAS 2381-31-9
| CAS No. | 2381-31-9 |
| Molecular Formula | C19H14 |
| Molecular Weight | 242.31 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 8-Methylbenz[a]anthracene is closely related to a polycyclic aromatic system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
8-Methylbenz[a]anthracene (CAS 2381-31-9), molecular formula C19H14 and molecular weight 242.31 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 8-Methylbenz[a]anthracene (C19H14) is characterized by a polycyclic aromatic system. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C19H14 |
| Molecular Weight | 242.31 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
Related Methylbenz Standards
- 10-Methylbenz[a]anthracene (CAS 2381-15-9)
- 12-Methylbenz[a]anthracene (CAS 2422-79-9)
- 12-Methylbenz[a]anthracene (CAS 6111-78-0)
- 1-Methylbenz[a]anthracene (CAS 2498-77-3)
- 2-Methylbenz[a]anthracene (CAS 2498-76-2)
- 3-Methylbenz[a]anthracene (CAS 2498-75-1)
- 4-Methylbenz[a]anthracene (CAS 316-49-4)
- 5-Methylbenz[a]anthracene (CAS 2319-96-2)
Recommended Standards
- 7-Methylbenz[a]anthracene (CAS 2541-69-7)
- 9,10-Dimethoxy-1,4,5,8-tetrahydroanthracene (CAS 651777-85-4)
- 7-hydroxy-6-methoxy-3-propyl-chromen-4-one (CAS 2755711-85-2)
- 9-Methylbenz[a]anthracene (CAS 2381-16-0)
- Sodium pyrimidine-2-carboxylate (CAS 562101-38-6)
- CAS 53007-09-3 (CAS 53007-09-3)
- Paricalcitol Impurity 1 (CAS 95716-68-0)
- But-3-yne-1-sulfonyl chloride (CAS 936644-39-2)
- 4-(4-Chloro-3-fluoro-2-hydroxyphenyl)-4-oxobutanoic acid (CAS 1208265-79-5)
- N-((1H-benzo[d][1,2,3]triazol-1-yl)methyl)-N-methylcyclohexanamine (CAS 57684-31-8)
- A-485 (CAS 1889279-16-6)
- 5-Amino-6-phenylpiperidin-2-one (CAS 906521-90-2)
- 2-Methyl-N-(pyridin-3-ylmethyl)butan-1-amine (CAS 1038278-50-0)
- D-Pro36-Tirzepatide (CAS CATO-CPTD788903)
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