3,3-Dimethyl-p-terphenyl CAS 97295-31-3
| CAS No. | 97295-31-3 |
| Molecular Formula | C20H18 |
| Molecular Weight | 258.36 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures 3,3-Dimethyl-p-terphenyl under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
3,3-Dimethyl-p-terphenyl (CAS 97295-31-3), molecular formula C20H18 and molecular weight 258.36 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 3,3-Dimethyl-p-terphenyl (C20H18) contains a polycyclic aromatic system. The molecule exhibits a degree of unsaturation (DBE) of 12.0, corresponding to approximately 12 ring(s) or double-bond equivalent(s). With a molecular weight of 258.36 g/mol, it falls into the medium-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
Physical & Chemical Properties
| Molecular Formula | C20H18 |
| Molecular Weight | 258.36 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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1984 |
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- 2-(4-ethoxyphenoxy)pyridine-4-carboximidamide hydrochloride (CAS 1221724-05-5)
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- 4-(Pyrrolidin-1-ylmethyl)-3-(p-tolyl)isoxazol-5(2H)-one (CAS 61195-08-2)
- Methyl 2-hydroxy-2-(4-methoxyphenyl)acetate (CAS 13305-14-1)
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