2-(Pyridin-2-yl)ethane-1-sulfonic acid CAS 68922-18-9
| CAS No. | 68922-18-9 |
| Molecular Formula | C7H9NO3S |
| Molecular Weight | 187.22 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2-(Pyridin-2-yl)ethane-1-sulfonic acid (CAS 68922-18-9) is a high-purity analytical reference standard with the molecular formula C7H9NO3S and a molecular weight of 187.22 g/mol.
Structurally, 2-(Pyridin-2-yl)ethane-1-sulfonic acid (C7H9NO3S) contains an amide group, 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 4.0, corresponding to approximately 4 ring(s) or double-bond equivalent(s). With a molecular weight of 187.22 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.
As a certified reference material (CRM), 2-(Pyridin-2-yl)ethane-1-sulfonic 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.
Physical & Chemical Properties
| Molecular Formula | C7H9NO3S |
| Molecular Weight | 187.22 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1976 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Pyridin Standards
- N-(pyridin-3-ylmethyl)sulfamide (CAS 1000933-31-2)
- N-(pyridin-2-ylmethyl)sulfamide (CAS 924307-96-0)
- Pyridin-2-ylmethyl methanesulfonate (CAS 215035-91-9)
- 2-(Pyridin-3-yl)-2-(pyrrolidin-1-yl)acetonitrile (CAS 1017387-70-0)
- 5-(Pyridin-4-yl)pyrimidine-2,4-diamine (CAS 103851-71-4)
- 6-(Pyridin-4-yloxy)pyridin-3-amine (CAS 1093952-87-4)
- 3-Methyl-1-(pyridin-2-yl)-1H-pyrazole-4-carbaldehyde (CAS 1152502-73-2)
- 1-methyl-3-(pyridin-3-yl)-1H-pyrazole-4-carbaldehyde (CAS 1152508-25-2)
Recommended Standards
- 2-(Methylamino)pyridine-3-sulfonamide (CAS 70661-79-9)
- 2-(Pyridine-4-sulfonyl)ethan-1-ol (CAS 376366-79-9)
- 2-(Methylamino)benzenesulfonic acid (CAS 70916-29-9)
- 2-(Thiophen-2-yl)pyrimidine-5-carbonitrile (CAS 926921-77-9)
- 3-(2,5,5-Trimethyl-1,3-dioxan-2-yl)thiophene-2-sulfonamide (CAS 138890-87-6)
- (E)-3-(6-Amino-3-pyridyl)acrylic Acid (CAS 167837-43-6)
- 4-(Benzylsulfanyl)benzoic acid (CAS 22855-95-4)
- 1-Amino-N-(2-methoxyethyl)cyclopropane-1-carboxamide (CAS 1499840-03-7)
- 1,4-Dichloro-2-[(2-chloroethyl)sulfanyl]benzene (CAS 742104-71-8)
- N-(4-isopropylbenzyl)cyclopropanamine hydrochloride (CAS 1049681-03-9)
- 1-Aminocyclobutanecarbonitrile (CAS 70780-84-6)
- Tert-butyl (5-chloro-7H-pyrrolo[2,3-b]pyridin-6-yl)carbamate (CAS 1305325-11-4)
- 1-(1,4-Dioxo-1,4-dihydronaphthalen-2-yl)piperidine-4-carboxylic acid (CAS 860788-44-9)
- Tirzepatide Impurity 57 (CAS CATO-C4X-324057)
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