Phenothiazine-10-carbonyl Chloride CAS 18956-87-1
| CAS No. | 18956-87-1 |
| Molecular Formula | C13H8ClNOS |
| Molecular Weight | 261.73 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage, chlorine substitution, Phenothiazine-10-carbonyl Chloride is typically pale yellow to yellow low-melting solid. Its solid-state physicochemical attributes — including a molecular weight of 261.73 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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).
Phenothiazine-10-carbonyl Chloride (CAS 18956-87-1) is a high-purity analytical reference standard with the molecular formula C13H8ClNOS and a molecular weight of 261.73 g/mol.
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 | C13H8ClNOS |
| Molecular Weight | 261.73 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| 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 | 1 |
| Sulfur Atoms | 1 |
Related Phenothiazine Standards
- α-Methyl-phenothiazine-10-ethanol (CAS 32209-47-5)
- α-Methyl-phenothiazine-10-ethanal (CAS 15375-56-1)
- Phenothiazine-10-propionitrile (CAS 1698-80-2)
- Phenothiazine Impurity 5 (CAS 258-08-2)
- 10H-Phenothiazine-2-carboxylic acid (CAS 25234-50-8)
- Phenothiazine-10-propionic Acid (CAS 362-03-8)
- 3H-Phenothiazine-3,7-diamine (CAS 1823827-77-5)
- 10H-Phenothiazine-2-carboxaldehyde (CAS 14604-09-2)
Recommended Standards
- 5-Chloro-3-(thiophen-2-ylmethylene)indolin-2-one (CAS 186611-58-5)
- (E)-N-(4-Chlorophenyl)-N'-(3-cyanothiophen-2-yl)methanimidamide (CAS 338777-46-1)
- 5-Chloro-3-(pyrrolidin-1-ylsulfonyl)pyridin-2-amine (CAS 1857922-27-0)
- 2-((4-Chloro-6-phenylpyrimidin-2-yl)thio)acetonitrile (CAS 56605-41-5)
- Decahydroquinoxalin-6-ol (CAS 1427378-50-4)
- Tert-butyl 1-amino-3,3-difluoro-8-azaspiro[4.5]Decane-8-carboxylate (CAS 2306278-12-4)
- 5-(4,5-Dimethyl-4h-1,2,4-triazol-3-yl)-2,4-difluoroaniline (CAS 1247165-85-0)
- 3-Bromo-5-(difluoromethoxy)pyridine (CAS 342602-27-1)
- 3-[(1Z)-(Methoxyimino)methyl]-1-phenylthiourea (CAS 338976-99-1)
- Chlorofluoromethane (CAS 593-70-4)
- (4-(1,3-Dioxolan-2-yl)phenyl)(4-methoxyphenyl)methanone (CAS 898759-90-5)
- 3-[(Z)-(5-nitrofuran-2-yl)methylideneamino]-5-[(2,2,3,3,5,5,6,6-octadeuteriomorpholin-4-yl)methyl]-1,3-oxazolidin-2-one (CAS 1246832-89-2)
- N1,N3-bis(2-(1H-indol-3-yl)ethyl)-2-(3-chloro-5-(trifluoromethyl)pyridin-2-yl)malonamide (CAS 478258-07-0)
- Polymyxin B nonapeptide (CAS 86408-36-8)
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