Bis(4-chlorophenyl)diselenide CAS 20541-49-5
| CAS No. | 20541-49-5 |
| Molecular Formula | C12H8Cl2Se2 |
| Molecular Weight | 381.02 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Owing to chlorine substitution, an aromatic ring system, Bis(4-chlorophenyl)diselenide is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 381.02 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
CATO supplies Bis(4-chlorophenyl)diselenide (CAS 20541-49-5), a certified reference material (molecular formula C12H8Cl2Se2, MW 381.02 g/mol) for analytical method development and quality control.
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), Bis(4-chlorophenyl)diselenide 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 | C12H8Cl2Se2 |
| Molecular Weight | 381.02 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1962 |
| Halogen Content | Cl-containing |
Related Bis Standards
- 1,2-Bis(3-chlorophenyl)diselane (CAS 30389-55-0)
- (E)-2-((4-chlorophenyl)thio)-1-(6-methylthiazolo[3,2-b][1,2,4]triazol-5-yl)ethan-1-one O-isopropyl oxime (CAS 866131-17-1)
- 1-((2-Chlorophenyl)thio)-3-(4-(4-fluorophenyl)piperazin-1-yl)propan-2-ol (CAS 338422-02-9)
- 1-((3-Chlorophenyl)thio)-3-(4-(2-fluorophenyl)piperazin-1-yl)propan-2-ol (CAS 338421-89-9)
- 1-[(4-Chlorophenyl)sulfanyl]-3-[4-(4-fluorophenyl)piperazino]-2-propanol (CAS 338421-73-1)
- 2-[(2-{[(2-chlorophenyl)methyl]sulfanyl}-5,6,7,8-tetrahydroquinazolin-4-yl)sulfanyl]acetic acid (CAS 339019-39-5)
- 5-(2-Chlorophenyl)-3-(3-ethoxypropyl)-2-sulfanyl-3h,4h-thieno[2,3-d]pyrimidin-4-one (CAS 747411-10-5)
- 1-[(2-chlorophenyl)sulfanyl]-3-[4-(2-fluorophenyl)piperazino]-2-propanol 338421-90-2 KS-000037EG (CAS 338421-90-2)
Recommended Standards
- 2-Amino-1,3-dibromoanthracene-9,10-dione (CAS 6288-68-2)
- Crisaborole Impurity 22 (CAS CATO-C4X-202122)
- 2-(5,6-Dibromo-1,3-dioxooctahydro-2H-4,7-methanoisoindol-2-yl)acetic acid (CAS 380428-86-4)
- 1-Amino-2,4-dibromo-anthraquinone (CAS 81-49-2)
- Isoquinolin-3-ylmethyl-phosphonic acid dimethyl ester (CAS 2097068-77-2)
- 2-Phosphoglycolic acid (CAS 13147-57-4)
- 3-((Pyridin-3-ylmethyl)amino)propan-1-ol (CAS 6951-00-4)
- N-((1H-benzo[d][1,2,3]triazol-1-yl)methyl)-4-bromo-3-methylaniline (CAS 256521-68-3)
- (E)-3-(4-(2,4-dichlorobenzoyl)-1-methyl-1H-pyrrol-2-yl)-N-methylacrylamide (CAS 400078-54-8)
- (2,1,3-Benzothiadiazole-κN1)carbonylchloro[(1E)-2-(1-pyrenyl)ethenyl]bis(triphenylphosphine)ruthenium(II) (CAS 1621871-86-0)
- 2-Mercaptoimidazole (CAS 872-35-5)
- Bicyclo[2.2.1]heptan-7-one (CAS 10218-02-7)
- 2-(4-(Phenylsulfonyl)piperazin-1-yl)benzo[d]thiazole (CAS 309268-43-7)
- (Tyr?)-C-Type Natriuretic Peptide (32-53) (human, porcine, rat) (CAS 142878-79-3)
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