27126-76-7 2EOA97B14A (Hydroxy(4-toluenesulfonato)iodo)benzene UNII-2EOA97B14A Koser's reagent [MI] Htib Hydroxy(4-methylbenzenesulfonato-O)phenyliodine Hydroxy(4-methylbenzenesulfonato-kappaO)phenyliodine Koser's reagent NSC-294176 Phenyliodoso hydroxide tosylate Phenyliodosyl hydroxide tosylate Reagents, koser'S CAS 27126-76-7
| CAS No. | 27126-76-7 |
| Molecular Formula | C13H25IO4S |
| Molecular Weight | 404.30 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 27126-76-7 2EOA97B14A (Hydroxy(4-toluenesulfonato)iodo)benzene UNII-2EOA97B14A Koser's reagent [MI] Htib Hydroxy(4-methylbenzenesulfonato-O)phenyliodine Hydroxy(4-methylbenzenesulfonato-kappaO)phenyliodine Koser's reagent NSC-294176 Phenyliodoso hydroxide tosylate Phenyliodosyl hydroxide tosylate Reagents, koser'S.
27126-76-7 2EOA97B14A (Hydroxy(4-toluenesulfonato)iodo)benzene UNII-2EOA97B14A Koser's reagent [MI] Htib Hydroxy(4-methylbenzenesulfonato-O)phenyliodine Hydroxy(4-methylbenzenesulfonato-kappaO)phenyliodine Koser's reagent NSC-294176 Phenyliodoso hydroxide tosylate Phenyliodosyl hydroxide tosylate Reagents, koser'S (CAS 27126-76-7), molecular formula C13H25IO4S and molecular weight 404.30 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 27126-76-7 2EOA97B14A (Hydroxy(4-toluenesulfonato)iodo)benzene UNII-2EOA97B14A Koser's reagent [MI] Htib Hydroxy(4-methylbenzenesulfonato-O)phenyliodine Hydroxy(4-methylbenzenesulfonato-kappaO)phenyliodine Koser's reagent NSC-294176 Phenyliodoso hydroxide tosylate Phenyliodosyl hydroxide tosylate Reagents, koser'S (C13H25IO4S) contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, iodine substitution. The molecule exhibits a degree of unsaturation (DBE) of 1.0, corresponding to approximately 1 ring(s) or double-bond equivalent(s). With a molecular weight of 404.30 g/mol, it falls into the moderately-high-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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), 27126-76-7 2EOA97B14A (Hydroxy(4-toluenesulfonato)iodo)benzene UNII-2EOA97B14A Koser's reagent [MI] Htib Hydroxy(4-methylbenzenesulfonato-O)phenyliodine Hydroxy(4-methylbenzenesulfonato-kappaO)phenyliodine Koser's reagent NSC-294176 Phenyliodoso hydroxide tosylate Phenyliodosyl hydroxide tosylate Reagents, koser'S 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 | C13H25IO4S |
| Molecular Weight | 404.30 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 1.0 |
| CAS Registry Year (est.) | 1964 |
| Halogen Content | I-containing |
| Sulfur Atoms | 1 |
Recommended Standards
- n-(2-Bromophenyl)-2-(4-(4-methoxyphenyl)piperazin-1-yl)acetamide (CAS 848249-65-0)
- Tert-butyl 3-(((3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridin-2-yl)oxy)methyl)pyrrolidine-1-carboxylate (CAS 1310404-72-8)
- Methyl 3-(4-bromophenyl)-3-(thiophene-2-sulfonamido)propanoate (CAS 383148-25-2)
- (E)-[(2,4-Dichlorophenyl)methoxy]({6-phenyl-2H,3H-imidazo[2,1-b][1,3]thiazol-5-yl}methylidene)amine (CAS 400080-08-2)
- 3-Bromo-4-methyl-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine (CAS 2043397-75-5)
- 2,5-Difluoro-4-(4-methylpiperazin-1-yl)benzoic acid (CAS 1430223-87-2)
- N-(2,4-Dimethoxyphenyl)-2-((4-(4-ethoxyphenyl)-5-(pyridin-3-yl)-4H-1,2,4-triazol-3-yl)thio)acetamide (CAS 477330-22-6)
- 3-Aminothieno[2,3-b]pyridine-2-carbohydrazide (CAS 890095-19-9)
- Argatroban Impurity 40 (CAS CATO-C4X-100740)
- (2Z)-2-({4-[(2-chloro-6-fluorophenyl)methoxy]phenyl}methylidene)-1-azabicyclo[2.2.2]octan-3-one (CAS 866019-67-2)
- 1-(2-Chloro-4-fluorophenyl)-3-(4-methoxyphenyl)propan-1-one (CAS 898776-13-1)
- N-Methylcyclobutanecarboxamide (CAS 1255641-15-6)
- 5-Amino-2-(trifluoromethoxy)benzoic acid (CAS 307989-56-6)
- (Des-Thr7)-Glucagon trifluoroacetate salt (CAS 1802078-28-9)
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