2'-Chloro-1,1':4',1''-terphenyl CAS 98905-05-6
| CAS No. | 98905-05-6 |
| Molecular Formula | C18H13Cl |
| Molecular Weight | 264.75 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 2'-Chloro-1,1':4',1''-terphenyl is closely related to chlorine substitution, a polycyclic aromatic system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
2'-Chloro-1,1':4',1''-terphenyl (CAS 98905-05-6), molecular formula C18H13Cl and molecular weight 264.75 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C18H13Cl, 2'-Chloro-1,1':4',1''-terphenyl contains chlorine substitution, a polycyclic aromatic system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 264.75 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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.
As a certified reference material (CRM), 2'-Chloro-1,1':4',1''-terphenyl 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 | C18H13Cl |
| Molecular Weight | 264.75 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate |
| Stability | May oxidize slowly on prolonged air exposure; 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.) | 1985 |
| Halogen Content | Cl-containing |
Related Chloro Standards
- 2-(Chloro(phenyl)methyl)-5-isopentyl-1,3,4-oxadiazole (CAS 1097053-12-7)
- 3-Chloro-N-(quinuclidin-3-yl)benzamide (CAS 120570-07-2)
- 5-Chloro-n-(cyanomethyl)-n-ethylthiophene-2-sulfonamide (CAS 1267356-74-0)
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- 4-chloro-1-cycloheptyl-6-methyl-1H-pyrazolo[3,4-d]pyrimidine (CAS 1293231-92-1)
- 3-Chloro-1,1':4',1''-terphenyl (CAS 1762-86-3)
- (S)-4-Chloro-N-(quinuclidin-3-yl)benzamide (CAS 737727-12-7)
- 2-Chloro-N-(3-(3-methyl-1H-indol-1-yl)propyl)acetamide (CAS 61985-40-8)
Recommended Standards
- 2-(Tert-butyl)-4-(4-chlorophenyl)-5-methyl-1,2-dihydro-3H-pyrazol-3-one (CAS 400076-62-2)
- 1-(5-Chlorospiro[indoline-3,4'-piperidin]-1-yl)ethanone (CAS 637362-19-7)
- 3-(((2-Chloro-8-methylquinolin-3-yl)methyl)amino)propan-1-ol (CAS 917748-13-1)
- 3-((2-Amino-4-chlorophenyl)amino)-5,5-dimethylcyclohex-2-en-1-one (CAS 39222-71-4)
- 898791-68-9 (4-Bromo-2-fluorophenyl)(cyclopentyl)methanone DTXSID90642574 (CAS 898791-68-9)
- Benzyl 6-iodo-5-oxo-1,4-diazepane-1-carboxylate (CAS 1956380-67-8)
- N-Methyl-1-(4-(phenoxymethyl)phenyl)methanamine (CAS 941716-90-1)
- 2-(2-Chlorophenyl)-1,2,3,4-tetrahydroquinolin-4-amine (CAS 1956376-81-0)
- 2-Methoxycarbonylphenyl isothiocyanate Methyl 2-isothiocyanatobenzoate 2-Isothiocyanatobenzoic acid methyl ester 16024-82-1 (CAS 16024-82-1)
- 5-(1-((5-Chlorothiophen-2-yl)sulfonyl)azetidin-3-yl)-3-(pyrimidin-2-yl)-1,2,4-oxadiazole (CAS 1327315-98-9)
- 2,4,5-Trifluorobenzamide (CAS 98349-23-6)
- 4-(6-Hydroxybenzofuran-2-yl)benzene-1,3-diol (CAS 67736-22-5)
- Tert-butyl 3-oxo-3-(p-tolyl)propanoate (CAS 122334-39-8)
- Semaglutide Impurity 163 (x TFA Salt) (CAS CATO-C4X-2226163)
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