DMT-2′O-TBDMS-rA (bz) phosphoramidite CAS 104992-55-4
| CAS No. | 104992-55-4 |
| Molecular Formula | C53H98N7O8PSi |
| Molecular Weight | 1020.45 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
DMT-2′O-TBDMS-rA (bz) phosphoramidite (CAS 104992-55-4), molecular formula C53H98N7O8PSi and molecular weight 1020.45 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of DMT-2′O-TBDMS-rA (bz) phosphoramidite (C53H98N7O8PSi) is characterized by a nitrogen-containing heterocyclic scaffold, an amide group, a phosphate ester group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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.
Physical & Chemical Properties
| Molecular Formula | C53H98N7O8PSi |
| Molecular Weight | 1020.45 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 8.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1986 |
| Nitrogen Atoms | 7 |
Recommended Standards
- Tri(Amino-PEG5-amide)-amine (CAS 2055013-52-8)
- 25440-14-6 5,10,15,20-Tetrakis(pentafluorophenyl)-21H,23H-porphine 5,10,15,20-tetrakis(pentafluorophenyl)porphyrin 5,10,15,20-tetrakis-(2,3,4,5,6-pentafluorophenyl)-21,23h-porphyrin meso-tetra(pentafluorophenyl)porphine (CAS 25440-14-6)
- Salinamide ADISCONTINUED (CAS 152340-22-2)
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- Ethyl 3-(bromomethyl)-1-methyl-1H-pyrazole-4-carboxylate (CAS 1176629-22-3)
- (5-Butyl-1H-pyrazol-3-yl)methanol (CAS 910896-66-1)
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- 2-((Tert-butoxycarbonyl)amino)-3-(trifluoromethoxy)benzoic acid (CAS 561304-40-3)
- 1-Methoxy-N-(4-(methylthio)benzyl)propan-2-amine (CAS 355816-32-9)
- 6-(Isopropylcarbamoyl)picolinic acid (CAS 1038407-00-9)
- 5-(4-nitrosopiperazin-1-yl)pyridin-2-amine (CAS CATO-C4X-249316)
- 2-Amino-3-cyclopropylpropanoic acid (CAS 15785-52-1)
- 9,10,12,13-Tetrabromooctadecanoic acid (CAS 1794-89-4)
- Tirzepatide Impurity 18 (CAS CATO-C4X-324018)
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