5-(4-Chlorobenzylidene)-2,2-dimethyl-1,3-dioxane-4,6-dione CAS 15851-87-3
| CAS No. | 15851-87-3 |
| Molecular Formula | C13H11ClO4 |
| Molecular Weight | 266.68 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system, 5-(4-Chlorobenzylidene)-2,2-dimethyl-1,3-dioxane-4,6-dione is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 266.68 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
5-(4-Chlorobenzylidene)-2,2-dimethyl-1,3-dioxane-4,6-dione (CAS 15851-87-3) is a high-purity analytical reference standard with the molecular formula C13H11ClO4 and a molecular weight of 266.68 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 | C13H11ClO4 |
| Molecular Weight | 266.68 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, 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; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1961 |
| Halogen Content | Cl-containing |
Related Chlorobenzylidene Standards
- N-(4-Chlorobenzylidene)quinolin-6-amine (CAS 84922-30-5)
- (E)-2-(4-chlorobenzylidene)-3,4-dihydronaphthalen-1(2H)-one (CAS 59082-24-5)
- 2-(4-Chlorobenzylidene)-5-(methylthio)thiophen-3(2H)-one (CAS 1000574-38-8)
- (E)-2-(4-Chlorobenzylidene)-5-methylbenzofuran-3(2H)-one (CAS 61976-56-5)
- (E)-3-(4-Chlorobenzylidene)chroman-4-one (CAS 62174-08-7)
- 3-(4-Chlorobenzylidene)chroman-4-one (CAS 61661-20-9)
- (E)-5-(((4-Chlorobenzylidene)amino)methyl)-2-methylpyrimidin-4-amine (CAS 20352-46-9)
- 3-(2-Chlorobenzylidene)-5-(4-ethoxyphenyl)furan-2(3H)-one (CAS 6781-90-4)
Recommended Standards
- Ethyl 2-(6-chloropyridin-2-yl)-5-methyl-2H-1,2,3-triazole-4-carboxylate (CAS 1431729-81-5)
- Ethyl 4-chloro-6-methoxy-1,5-naphthyridine-3-carboxylate (CAS 162220-96-4)
- Ethyl 5-amino-4-chloro-1-(pyridin-3-yl)-1H-pyrazole-3-carboxylate (CAS 1427022-77-2)
- 5-Amino-1-(1-(4-chlorophenyl)ethyl)-1H-1,2,3-triazole-4-carboxylic acid (CAS 1630980-41-4)
- ethyl 5-fluoro-1H-pyrrolo[2,3-b]pyridine-2-carboxylate (CAS 920978-95-6)
- rac-(3R,4S)-4-(1-methyl-1H-pyrazol-4-yl)pyrrolidine-3-carboxylic acid hydrochloride (CAS 1969288-15-0)
- 5-(Cyclohexylmethyl)-2-fluorophenol (CAS 1243381-96-5)
- 4-Chloro-2-(3-methyl-2,3-dihydro-1,3-benzothiazol-2-ylidene)-3-oxobutanenitrile (CAS 746607-67-0)
- 4,4'-(Oxybis(4,1-phenylene))dipyridine (CAS 133416-11-2)
- 2-Hydrazinyl-5-methyl-7-propylimidazo[1,5-b]pyridazine (CAS 793615-37-9)
- (1-(3-Chloro-4-fluorophenyl)-3-phenyl-1H-pyrazol-4-yl)methanol (CAS 618383-26-9)
- 2-(2-Methylpropanamido)-4h,5h,6h-cyclopenta[b]thiophene-3-carboxylic acid (CAS 743439-31-8)
- n-(4-Methoxybenzyl)-5-nitroimidazo[2,1-b]thiazol-6-amine (CAS 339021-37-3)
- Tirzepatide Impurity 21 X TFA Salt (CAS CATO-C4X-324021)
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