2-((3-Chloro-4-methyl-2-oxo-2H-chromen-7-yl)oxy)acetic acid CAS 176446-74-5
| CAS No. | 176446-74-5 |
| Molecular Formula | C12H9ClO5 |
| Molecular Weight | 268.65 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 2-((3-Chloro-4-methyl-2-oxo-2H-chromen-7-yl)oxy)acetic acid.
2-((3-Chloro-4-methyl-2-oxo-2H-chromen-7-yl)oxy)acetic acid (CAS 176446-74-5), molecular formula C12H9ClO5 and molecular weight 268.65 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 2-((3-Chloro-4-methyl-2-oxo-2H-chromen-7-yl)oxy)acetic acid (C12H9ClO5) is characterized by a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system. In reversed-phase chromatography, its retention is governed primarily by the polarity and ionization state of its functional groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures 2-((3-Chloro-4-methyl-2-oxo-2H-chromen-7-yl)oxy)acetic acid under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C12H9ClO5 |
| Molecular Weight | 268.65 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 methanol, acetonitrile, DMSO, water (slightly soluble) |
| 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.) | 2007 |
| Halogen Content | Cl-containing |
Related Chloro Standards
- 1-(4-Chloro-3-nitrobenzyl)pyrrolidine-2,5-dione (CAS 1097788-45-8)
- 3-Chloro-6,7-dimethoxyquinoxaline-2-carboxylic acid (CAS 122234-54-2)
- 6-Chloro-7-ethoxy-2-oxo-2H-chromene-3-carboxylic acid (CAS 1352503-73-1)
- Ethyl 7-chloro-5-nitro-1H-indole-2-carboxylate (CAS 1352899-64-9)
- 5-Chloro-6-methoxy-4-methyl-8-nitroquinolin-2(1H)-one (CAS 189746-23-4)
- 5-Chloro-4-(fluorosulfonyl)-2-methoxybenzoic acid (CAS 1955558-41-4)
- 2-(6-Chloro-7-hydroxy-4-methyl-2-oxo-2H-chromen-3-yl)acetic acid (CAS 855287-83-1)
- 2-[(6-chloro-4-methyl-2-oxo-2h-chromen-7-yl)oxy]acetic acid (CAS 326102-48-1)
Recommended Standards
- 2-[3-(3-chlorophenyl)-2,4-dioxoimidazolidin-1-yl]acetic acid (CAS 1411650-70-8)
- 5-(Chlorosulfonyl)-3-fluoro-2-methoxybenzoic acid (CAS 1375471-82-1)
- (E)-4-(2-(3-chlorobenzoyl)hydrazinyl)-4-oxobut-2-enoic acid (CAS 304456-83-5)
- (4-Cyanophenyl)zinc pivalate ( 0.96 mmol/g) (CAS 1344727-28-1)
- Methyl 2-amino-3-(4-methyl-1H-imidazol-5-yl)propanoate (CAS 68805-28-7)
- 2-(4-Cyanobenzyl)thiazole-4-carboxylic acid (CAS 2253525-96-9)
- 2-((4-Methyl-1-(p-tolyl)-1H-pyrazolo[3,4-d]pyridazin-7-yl)thio)acetamide (CAS 1207017-78-4)
- t-Boc-N-amido-PEG5-propionic Acid (CAS 1347750-78-0)
- [2-(4-chlorophenoxy)ethyl]hydrazine hydrochloride (CAS 69782-24-7)
- 2,7-Dimethoxy-9-mesityl-10-methylacridinium tetrafluoroborate (CAS 2635339-81-8)
- 1-(3,5-Difluorophenyl)but-3-en-2-one (CAS 889955-36-6)
- 4-(5-Chloro-2-hydroxyphenyl)-4-oxobutanoic acid (CAS 62903-23-5)
- n-(4-Hydroxyphenyl)-n-methylprop-2-ynamide (CAS 1042536-61-7)
- Semaglutide impurity 80 (CAS CATO-C4X-222680)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com