(S)-2-(Tosyloxy)propanoic acid CAS 70836-98-5
| CAS No. | 70836-98-5 |
| Molecular Formula | C10H12O5S |
| Molecular Weight | 244.26 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), (S)-2-(Tosyloxy)propanoic acid 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.
(S)-2-(Tosyloxy)propanoic acid (CAS 70836-98-5), molecular formula C10H12O5S and molecular weight 244.26 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, (S)-2-(Tosyloxy)propanoic acid (C10H12O5S) contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 5.0, corresponding to approximately 5 ring(s) or double-bond equivalent(s). With a molecular weight of 244.26 g/mol, it falls into the medium-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C10H12O5S |
| Molecular Weight | 244.26 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1977 |
| Sulfur Atoms | 1 |
Related S Standards
- (R)-2-(Tosyloxy)propanoic Acid (CAS 130368-69-3)
- 1-(Tosyloxy)-3-butanol (CAS 59744-08-0)
- (Tosyloxy)carbonimidoyl dicyanide (CAS 20893-01-0)
- 2-((Tosyloxy)amino)ethan-1-amine (CAS 175205-36-4)
- Ethyl 2-(tosyloxy)acetate (CAS 39794-75-7)
- Methyl 2-(tosyloxy)propanoate (CAS 66648-29-1)
- Methyl 2-(tosyloxy)butanoate (CAS 118921-64-5)
- Ethyl 2-(tosyloxy)propanoate (CAS 33798-77-5)
Recommended Standards
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- (S)-1-Benzyl-3-(trifluoromethyl)pyrrolidin-3-amine (CAS 2382043-36-7)
- 1-(2-((3-Fluorobenzyl)oxy)phenyl)ethan-1-one (CAS 845823-26-9)
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