1,4-Diethynyl-2,5-bis(butyloxy)benzene CAS 128834-29-7
| CAS No. | 128834-29-7 |
| Molecular Formula | C18H22O2 |
| Molecular Weight | 270.37 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C18H22O2, 1,4-Diethynyl-2,5-bis(butyloxy)benzene contains a steroid core, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 270.37 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
1,4-Diethynyl-2,5-bis(butyloxy)benzene (CAS 128834-29-7), molecular formula C18H22O2 and molecular weight 270.37 g/mol, is a CATO reference standard with documented purity and traceability.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures 1,4-Diethynyl-2,5-bis(butyloxy)benzene 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.
Physical & Chemical Properties
| Molecular Formula | C18H22O2 |
| Molecular Weight | 270.37 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1993 |
Related Diethynyl Standards
- 2',5'-Diethynyl-p-terphenyl (CAS 871248-64-5)
- 4,4"-Diethynyl-1,1':4',1"-terphenyl (CAS 47230-46-6)
- 1,4-Diethynyl-2,5-bis(trifluoromethyl)benzene (CAS 1084895-80-6)
- 2,2'-(2,5-Diethynyl-1,4-phenylene)dithiophene (CAS 2701595-07-3)
- 1,4-Diethynyl-2,5-dipropoxybenzene (CAS 406721-43-5)
- (R)-2,2'-Diethynyl-1,1'-binaphthalene (CAS 426210-81-3)
- (S)-2,2'-Diethynyl-1,1'-binaphthalene (CAS 426210-82-4)
- 2,2'-Diethynyl-1,1'-binaphthalene (CAS 765911-39-5)
Recommended Standards
- Tert-butyl ((1-propionylpiperidin-4-yl)methyl)carbamate (CAS 1286273-04-8)
- Ethyl 2-(4-methoxyphenylcarbonothioylthio)acetate (CAS 129841-40-3)
- Tert-butyl (1-isobutyrylpiperidin-4-yl)carbamate (CAS 1286265-44-8)
- 1,7-Di(pyridin-3-yl)heptan-4-ol (CAS 1313026-26-4)
- 4-Amino-2-bromo-3-(trifluoromethoxy)benzene-1-sulfonyl chloride (CAS 1806993-88-3)
- Methyl 4-((1h-imidazole-1-carboxamido)methyl)benzoate (CAS 949218-76-2)
- 2-Chloro-4-(4-chloro-1h-pyrazol-1-yl)quinazoline (CAS 1496101-43-9)
- 5'-(5-Formyl-2-methylphenyl)-6,6''-dimethyl-[1,1':3',1''-terphenyl]-3,3''-dicarbaldehyde (CAS 2413827-89-9)
- 25114-58-3 5-tert-butyl-4-({6-hydroxy-2-[2-(4-hydroxyphenyl)ethyl]-4-oxo-2-(propan-2-yl)-3,4-dihydro-2h-pyran-5-yl}sulfanyl)-2-methylphenyl dimethylsulfamate AR-1G9533 (CAS 25114-58-3)
- 6-Amino-3-(4-chlorophenyl)-4-(4-(cyclopentyloxy)-3-methoxyphenyl)-2,4-dihydropyrano[2,3-c]pyrazole-5-carbonitrile (CAS 939889-00-6)
- 5-Fluoro-2-methylisoindoline-1,3-dione (CAS 63196-44-1)
- tert-butyl ((1-((2,4-dichloropyrimidin-5-yl)methyl)pyrrolidin-2-yl)methyl)carbamate (CAS 1420823-05-7)
- 5-[(3-amino-2,2-dimethyl-propyl)amino]-2-(2,6-dioxo-3-piperidyl)isoindoline-1,3-dione (CAS 2703761-01-5)
- Insulin aspart (CAS 116094-23-6)
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