Gold, (2-methylpropanoato-O)(triphenylphosphine)- CAS 134705-40-1
| CAS No. | 134705-40-1 |
| Molecular Formula | C22H22AuO2P |
| Molecular Weight | 546.35 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
CATO supplies Gold, (2-methylpropanoato-O)(triphenylphosphine)- (CAS 134705-40-1), a certified reference material (molecular formula C22H22AuO2P, MW 546.35 g/mol) for analytical method development and quality control.
Owing to a steroid core, organophosphorus functionality, a hydroxyl group, an ether linkage, Gold, (2-methylpropanoato-O)(triphenylphosphine)- is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 546.35 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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).
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 | C22H22AuO2P |
| Molecular Weight | 546.35 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at room temperature, 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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1995 |
Related Gold Standards
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- Gold, (2-phenylethenyl)(triphenylphosphine)-, (Z)- (CAS 57947-31-6)
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- Gold, dibromo[1,1′-[thiobis(methylene)]bis[benzene]]- (CAS 65394-55-0)
- Gold, (2-phenylcyclopropyl)(triphenylphosphine)- (CAS 113286-63-8)
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- Gold iodide (AuI3) (CAS 13453-24-2)
Recommended Standards
- 2,2'-(Butane-1,4-diylbis(sulfanediyl))bis(N-(2-bromophenyl)acetamide) (CAS 301194-28-5)
- TFP-PEG3-TFP (CAS 1446282-34-3)
- P,P′-[5′-(4-Phosphonophenyl)[1,1′:3′,1′′-terphenyl]-4,4′′-diyl]bis[phosphonic acid] (CAS 1045720-71-5)
- 4,6-Dichloro-N-octadecyl-1,3,5-triazin-2-amine (CAS 52643-21-7)
- Bis(1,4-di-t-butyl-1,3-diazabutadienyl)cobalt(II) (CAS 177099-51-3)
- 2-[(R)-(4-Chlorophenyl)(4-piperidinyloxy)methyl]pyridine,(2S,3S)-2,3-dihydroxybutanedioate (CAS 210095-62-8)
- m-PEG3-succinimidyl carbonate (CAS 477775-77-2)
- 2'-Methyl-[1,1'-biphenyl]-4-carbaldehyde (CAS 108934-21-0)
- N-(pyridin-3-yl)acrylamide (CAS 143685-68-1)
- 2-(4-Bromophenyl)-2-cyclopropylacetic acid (CAS 77585-44-5)
- Metatartaric acid (CAS 39469-81-3)
- cis-3-(3-nitrophenyl)cyclobutan-1-ol (CAS 1864003-61-1)
- 2-[(diethylamino)methyl]cyclohexan-1-amine (CAS 55762-07-7)
- Tirzepatide Impurity 26 X TFA Salt (CAS CATO-C4X-324026)
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