2-Methylisothiazolidin-3-one CAS 1003-22-1
| CAS No. | 1003-22-1 |
| Molecular Formula | C4H7NOS |
| Molecular Weight | 117.17 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-Methylisothiazolidin-3-one.
2-Methylisothiazolidin-3-one (CAS 1003-22-1), molecular formula C4H7NOS and molecular weight 117.17 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 2-Methylisothiazolidin-3-one (C4H7NOS) contains an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 2.0, corresponding to approximately 2 ring(s) or double-bond equivalent(s). With a molecular weight of 117.17 g/mol, it falls into the low-molecular-weight range. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures 2-Methylisothiazolidin-3-one under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C4H7NOS |
| Molecular Weight | 117.17 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 2.0 |
| CAS Registry Year (est.) | 1957 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Recommended Standards
- trans-4-Fluorocyclohexanamine (CAS 923672-47-3)
- 5-thiazolecarbaldehyde (CAS 1003-32-3)
- trans-2-Fluorocyclohexanamine (CAS 75198-04-8)
- 2-aldehydethiazole (CAS 10200-59-6)
- Trans-2-(tert-butyl)-3-phenylisoxazolidine-5-carbonitrile (CAS 87190-46-3)
- 2-(Chloromethyl)-3,4-dibromo-6-(difluoromethyl)pyridine (CAS 1806808-31-0)
- 8-Iodooctanoic acid ethyl ester (CAS 56703-12-9)
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Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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