1,2-Bis(2-chloro-5-nitrophenyl)disulfane CAS 20201-05-2
| CAS No. | 20201-05-2 |
| Molecular Formula | C12H6Cl2N2O4S2 |
| Molecular Weight | 377.22 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
1,2-Bis(2-chloro-5-nitrophenyl)disulfane (CAS 20201-05-2), molecular formula C12H6Cl2N2O4S2 and molecular weight 377.22 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 1,2-Bis(2-chloro-5-nitrophenyl)disulfane (C12H6Cl2N2O4S2) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 10.0, corresponding to approximately 10 ring(s) or double-bond equivalent(s). With a molecular weight of 377.22 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.
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 | C12H6Cl2N2O4S2 |
| Molecular Weight | 377.22 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1962 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 2 |
Related Bis Standards
- 1,2-Bis(4-chloro-2-nitrophenyl)disulfane (CAS 2050-66-0)
- 4-(2-Chloro-5-fluoropyrimidin-4-ylamino)-N-(2-chlorophenyl)benzamide (CAS 1158838-41-5)
- 1-(3-Chloro-5-(trifluoromethyl)pyridin-2-yl)-4-(6-chloropyridin-2-yl)piperazine (CAS 338979-26-3)
- N-(2-chloro-5-(trifluoromethyl)phenyl)-2-((4-chlorobenzyl)amino)acetamide (CAS 297150-43-7)
- 8-Chloro-4-((3-chloro-4-fluorophenyl)amino)-6-nitroquinoline-3-carbonitrile (CAS 915369-47-0)
- 4-Chloro-N-{[2-(4-chlorophenyl)-4-methyl-1,3-thiazol-5-yl]methyl}benzamide (CAS 865658-39-5)
- 6-chloro-N-[2-(3-chlorophenyl)-2-oxoethyl]-4-(trifluoromethyl)nicotinamide (CAS 680213-95-0)
- 4-Chloro-5-(2-chlorophenyl)-2-(thiophen-2-ylmethyl)thieno[2,3-d]pyrimidine (CAS 885460-58-2)
Recommended Standards
- 1-(3,5-Dichlorophenyl)-N-(4-methoxyphenyl)-5-methyl-1H-1,2,4-triazole-3-carboxamide (CAS 338408-57-4)
- [5-(3,4-Dichlorophenyl)-1,2-oxazol-3-yl]methyl N-(4-methylphenyl)carbamate (CAS 343374-60-7)
- 1-[(2,4-Dichlorophenyl)methyl]-3-[(4-methylphenyl)methyl]imidazolidine-2,4,5-trione (CAS 341966-53-8)
- (3S,3AR,6aS)-5-(2,4-dichlorophenyl)-2-methyl-3-phenyl-hexahydro-2H-pyrrolo[3,4-d][1,2]oxazole-4,6-dione (CAS 318951-50-7)
- (S)-Benzyl 2-benzylpiperazine-1-carboxylate hydrochloride (CAS 1217679-84-9)
- Methyl 3-amino-5-methyl-4-oxo-2-thioxo-1,2,3,4-tetrahydrothieno[2,3-d]pyrimidine-6-carboxylate (CAS 896689-54-6)
- Iriflophenone 3-C-glucoside (CAS 104669-02-5)
- 1-(3-Methylbenzoyl)piperidine-4-carboxamide (CAS 418777-87-4)
- N-Methyl-1-(4-methyloxazol-2-yl)methanamine (CAS 1196151-82-2)
- Ethyl 2-amino-4-methylbenzoate (CAS 64818-80-0)
- (S)-2-amino-1-(isoindolin-2-yl)-3-methylbutan-1-one (CAS 1822065-66-6)
- 3-(2-Fluorophenyl)-N-((2-methoxyadamantan-2-yl)methyl)propanamide (CAS 1798039-74-3)
- (S)-2-Amino-N-(2-(furan-2-yl)-2-oxoethyl)-3-methylbutanamide (CAS 1354017-59-6)
- (Met(O)2?)-Glucagon (1-29) (human, rat, porcine) (CAS 75217-63-9)
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