1,3,7-Trimethylnaphthalene CAS 2131-38-6
| CAS No. | 2131-38-6 |
| Molecular Formula | C13H14 |
| Molecular Weight | 170.25 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
1,3,7-Trimethylnaphthalene (CAS 2131-38-6), molecular formula C13H14 and molecular weight 170.25 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C13H14, 1,3,7-Trimethylnaphthalene contains an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 170.25 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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).
As a certified reference material (CRM), 1,3,7-Trimethylnaphthalene meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C13H14 |
| Molecular Weight | 170.25 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
Related Trimethylnaphthalene Standards
- 2,4,5-Trimethylnaphthalene (CAS 17057-91-9)
- 1,2,3-Trimethylnaphthalene (CAS 879-12-9)
- 1,2,4-Trimethylnaphthalene (CAS 2717-42-2)
- 1,2,5-Trimethylnaphthalene (CAS 641-91-8)
- 1,2,6-Trimethylnaphthalene (CAS 3031-05-8)
- 1,4,6-Trimethylnaphthalene (CAS 2131-42-2)
- 2,3,6-Trimethylnaphthalene (CAS 829-26-5)
- 1,3,6-Trimethylnaphthalene (CAS 3031-08-1)
Recommended Standards
- 1,2-Diisopropylpyrazolidin-4-one (CAS 545342-37-8)
- 1,5-Dimethyl-3,7-diazabicyclo[3.3.1]nonan-9-ol (CAS 314748-53-3)
- 1-[4-(2-Aminoethyl)-1-piperidinyl]ethanone (CAS 791563-61-6)
- 10-Hydroxygeraniol (CAS 26488-97-1)
- Methyl 1-benzyl-5-(4-chlorophenyl)-3-(4-methoxyphenyl)-4,6-dioxooctahydropyrrolo[3,4-c]pyrrole-1-carboxylate (CAS 318239-70-2)
- 4-(2-(2-((1-Bromonaphthalen-2-yl)oxy)acetyl)hydrazinyl)-4-oxobutanoic acid (CAS 315672-81-2)
- Ethyl 2-(2-chloro-2-phenylacetamido)-4-phenylthiophene-3-carboxylate (CAS 554404-43-2)
- Cocsulin (CAS 26279-88-9)
- 4-Oxo-1-(2-pyridin-2-ylethyl)-1,4-dihydropyridine-3,5-dicarboxylic acid (CAS 1785761-90-1)
- 2-(4-((2-Methoxyphenyl)carbamoyl)phenoxy)acetic acid (CAS 462069-97-2)
- 3-Methoxy-4-(1H-purin-8-yl)benzenesulfonamide (CAS 89469-17-0)
- 1-(3-Bromopropyl)-4,4-difluoropiperidine (CAS 1782084-16-5)
- Methyl 2,3-dichloro-3-oxopropanoate (CAS 60180-62-3)
- Peptide Fmoc-Thi-Thi-OH (CAS CATO-CPTD788552)
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