Biotin-PEG3-propargyl CAS 1421701-68-9
| CAS No. | 1421701-68-9 |
| Molecular Formula | C19H31N3O5S |
| Molecular Weight | 413.53 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Biotin-PEG3-propargyl is closely related to a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
CATO supplies Biotin-PEG3-propargyl (CAS 1421701-68-9), a certified reference material (molecular formula C19H31N3O5S, MW 413.53 g/mol) for analytical method development and quality control.
The molecular framework of Biotin-PEG3-propargyl (C19H31N3O5S) is characterized by a steroid core, an amide group, a sulfone 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.
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), Biotin-PEG3-propargyl 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 | C19H31N3O5S |
| Molecular Weight | 413.53 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1991 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related Biotin Standards
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- (+)-Biotin-PEG2-hydrazide (CAS 2413847-26-2)
- Biotin-PEG3-Amine (CAS 359860-27-8)
- Biotin Impurity 11 (CAS CATO-C4X-156311)
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Recommended Standards
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- (1S)-2'-(Diisopropylphosphino)-N,N-dimethyl-[1,1'-binaphthalen]-2-amine (CAS 571206-30-9)
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- 6,6-Dimethyl-4,5,6,7-tetrahydro-2H-indazol-4-ol (CAS 1432273-27-2)
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