6,7-Dimethoxy-1-oxo-2,3-dihydro-1H-indene-4-carboxylic acid CAS 148050-74-2
| CAS No. | 148050-74-2 |
| Molecular Formula | C12H12O5 |
| Molecular Weight | 236.22 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
6,7-Dimethoxy-1-oxo-2,3-dihydro-1H-indene-4-carboxylic acid (CAS 148050-74-2), molecular formula C12H12O5 and molecular weight 236.22 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system, 6,7-Dimethoxy-1-oxo-2,3-dihydro-1H-indene-4-carboxylic acid is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 236.22 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).
As a certified reference material (CRM), 6,7-Dimethoxy-1-oxo-2,3-dihydro-1H-indene-4-carboxylic acid 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 | C12H12O5 |
| Molecular Weight | 236.22 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| 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 |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1999 |
Related Dimethoxy Standards
- 2-(5,6-Dimethoxy-1H-indazol-3-yl)acetic acid (CAS 199533-43-2)
- 6,7-Dimethoxy-3-methylbenzofuran-2-carboxylic acid (CAS 63445-53-4)
- 6,7-Dimethoxy-3-methylquinazoline-2,4(1H,3H)-dione (CAS 20197-88-0)
- 6,7-Dimethoxy-8-nitro-3,4-dihydroisoquinoline (CAS 917892-74-1)
- Methyl 5,6-dimethoxy-1H-indazole-3-carboxylate (CAS 885279-34-5)
- 3,5-Dimethoxy-alpha-(trifluoromethyl)benzyl Alcohol (CAS 1247789-27-0)
- (3,4-Dimethoxy-2-(trifluoromethyl)phenyl)methanol (CAS 138490-98-9)
- 2,6-Dimethoxy-4-(prop-1-en-1-yl)phenyl acetate (CAS 29540-10-1)
Recommended Standards
- 2-Acetyl-1,3-phenylene diacetate (CAS 144152-28-3)
- 4-Isonicotinoylmorpholine-3-carboxylic acid (CAS 1483011-96-6)
- Ethyl 6-cyano-3-methoxy-1-methyl-2-oxo-1,2-dihydropyridine-4-carboxylate (CAS 1429204-82-9)
- 1-(6-Methoxynicotinoyl)azetidine-3-carboxylic acid (CAS 1486185-39-0)
- 2-(Pyrazolidin-1-yl)-1,4,5,6-tetrahydropyrimidine (CAS 160727-49-1)
- 2-Amino-5-bromo-N,N-diethylbenzamide (CAS 1263376-84-6)
- tert-Butyl 4-(2-chloroacetyl)-2-methylpiperazine-1-carboxylate (CAS 1353947-81-5)
- 2-(Bromomethyl)-1,3,4-oxadiazole (CAS 2091895-85-9)
- 2-(Trifluoromethyl)-5,6,7,8-tetrahydroimidazo[1,2-a]pyridin-6-amine (CAS 1340097-26-8)
- 5-Methyl-6-(trifluoromethyl)-1H-indole (CAS 248602-12-2)
- 2-(2-Formyl-phenoxy)-N-(3-nitro-phenyl)-acetamide (CAS 331962-81-3)
- 2-(Bromomethyl)-4-chloro-5-fluoropyridine (CAS 139161-28-7)
- Tert-butyl 2-(2-(4-chlorophenyl)-1-((2-methoxyethyl)imino)ethyl)hydrazine-1-carboxylate (CAS 1053657-53-6)
- Semaglutide impurity 39 (CAS CATO-C4X-222639)
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