2-[(pyridin-2-ylmethyl)sulfanyl]acetic acid CAS 21897-11-0
| CAS No. | 21897-11-0 |
| Molecular Formula | C8H9NO2S |
| Molecular Weight | 183.23 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 2-[(pyridin-2-ylmethyl)sulfanyl]acetic acid.
2-[(pyridin-2-ylmethyl)sulfanyl]acetic acid (CAS 21897-11-0) is a high-purity analytical reference standard with the molecular formula C8H9NO2S and a molecular weight of 183.23 g/mol.
The molecular framework of 2-[(pyridin-2-ylmethyl)sulfanyl]acetic acid (C8H9NO2S) is characterized by a nitrogen-containing heterocyclic scaffold, 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. 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).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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 | C8H9NO2S |
| Molecular Weight | 183.23 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1963 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related pyridin Standards
- 2-(pyridin-2-ylthio)acetohydraZide (CAS 104496-91-5)
- Methyl 2-(pyridin-2-ylthio)acetate (CAS 114086-04-3)
- (S)-2-(Pyridin-2-ylthio)propanoic acid (CAS 864754-02-9)
- 2-(Pyridin-2-ylsulfanyl)propanoic acid (CAS 32002-78-1)
- 2-(Pyridin-4-ylthio)propanoic acid (CAS 56201-89-9)
- 2-[(pyridin-3-ylmethyl)sulfanyl]acetic acid (CAS 887090-42-8)
- 2-[(pyridin-4-ylmethyl)sulfanyl]acetic acid (CAS 52758-87-9)
- 3-(pyridin-2-ylthio)propanoic acid (CAS 32002-84-9)
Recommended Standards
- 2,5-Dimethyl-4-nitrobenzenethiol (CAS 38405-48-0)
- 2,3-dimethoxypropane-1-sulfonamide (CAS 2026587-11-9)
- 2,3-Dihydro-benzo[b]thiophen-3-amine 1,1-dioxide (CAS 83863-51-8)
- 2-Amino-4h,5h,6h-cyclopenta[b]thiophene-3-carboxylic acid (CAS 337311-46-3)
- 2-diphenylphosphanylethanesulfonic acid (CAS 118516-46-4)
- 5-Bromo-7-methoxyindoline (CAS 1369111-96-5)
- 1H-Pyrrolo[2,3-b]pyridine-6-carbaldehyde hydrate (CAS 1822948-66-2)
- Epinephrine Impurity 132 (CAS CATO-C4X-1849132)
- 2,2'-((4-((2-Methoxyethyl)amino)-3-nitrophenyl)azanediyl)bis(ethan-1-ol) (CAS 23920-15-2)
- 4-Isopropylcyclohexane-1-carbothioamide (CAS 1462858-36-1)
- Tert-butyl (S)-2-(trifluoromethyl)azetidine-2-carboxylate (CAS 2165922-41-6)
- 3,5-Bis(3-bromophenyl)-4-phenyl-4H-1,2,4-triazole (CAS 1198843-27-4)
- 4-(Furan-2-ylmethyl)-5-(4-(morpholinosulfonyl)phenyl)-4H-1,2,4-triazole-3-thiol (CAS 917750-01-7)
- Valosin Peptide (VQY), porcine (CAS 99510-37-9)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com