(R)-2,2',3,3'-Tetrahydro-1,1'-spirobi[indene]-7,7'-dicarboxylic acid CAS 856407-39-1
| CAS No. | 856407-39-1 |
| Molecular Formula | C19H16O4 |
| Molecular Weight | 308.33 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 (R)-2,2',3,3'-Tetrahydro-1,1'-spirobi[indene]-7,7'-dicarboxylic acid.
(R)-2,2',3,3'-Tetrahydro-1,1'-spirobi[indene]-7,7'-dicarboxylic acid (CAS 856407-39-1) is a high-purity analytical reference standard with the molecular formula C19H16O4 and a molecular weight of 308.33 g/mol.
(R)-2,2',3,3'-Tetrahydro-1,1'-spirobi[indene]-7,7'-dicarboxylic acid (C19H16O4) contains a flavonoid core, a hydroxyl group, an ether linkage. Its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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 (R)-2,2',3,3'-Tetrahydro-1,1'-spirobi[indene]-7,7'-dicarboxylic 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 | C19H16O4 |
| Molecular Weight | 308.33 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| 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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
Related R Standards
- (S)-2,2',3,3'-Tetrahydro-1,1'-spirobi[1H-indene]-7,7'-dicarboxylic acid (CAS 920985-42-8)
- (E)-2,3,4,9-tetrahydro-1H-carbazol-1-one O-(2-fluorobenzyl) oxime (CAS 860612-34-6)
- N-(1-(Tetrahydro-2H-pyran-4-yl)-1H-pyrazol-4-yl)pyridine-3-sulfonamide (CAS 1797182-30-9)
- 5-Oxo-6,7,8,9-tetrahydro-5H-benzo[7]annulen-2-yl trifluoromethanesulfonate (CAS 154122-33-5)
- 2-[(Tetrahydro-3-furanyl)oxy]-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine (CAS 1351380-35-2)
- N-(1-(Tetrahydro-2H-pyran-4-yl)-1H-pyrazol-4-yl)benzenesulfonamide (CAS 1797552-32-9)
- 3-Phenyl-3,4,7,12-tetrahydro-1H-[1,2,5]triazepino[1,2-b]phthalazine-1,5(2H)-dione (CAS 81215-65-8)
- 2-((5-Oxo-1,2,5,6-tetrahydro-[1,1'-biphenyl]-3-yl)amino)benzoic acid (CAS 413594-39-5)
Recommended Standards
- (R)-2-((3aR,5S,6aR)-2,2-dimethyltetrahydrofuro[2,3-d][1,3]dioxol-5-yl)-2-hydroxyethyl benzoate (CAS 20720-46-1)
- (S)-2-(((Benzyloxy)carbonyl)amino)-6-formamidohexanoic acid (CAS 20807-05-0)
- (Methylenebis(1H-benzo[d]imidazole-6,2-diyl))dimethanol (CAS 294656-32-9)
- (S)-2-((tert-Butoxycarbonyl)amino)-3-(2-carbamoylphenyl)propanoic acid (CAS 959573-27-4)
- 2-Amino-4-(azepan-1-ylmethyl)phenol dihydrobromide (CAS 1240528-30-6)
- 1-{4-[(2E)-3-(4-Methylphenyl)prop-2-enoyl]phenyl}-1H-pyrrole-2,5-dione (CAS 949923-53-9)
- 5-(chlorosulfonyl)-2-fluoro-3-methylbenzoic acid (CAS 1394040-67-5)
- 2-Chloro-5-(3,5-dimethyl-isoxazol-4-yl)-benzoic acid (CAS 876709-11-4)
- Cefdinir Impurity 40 (CAS 1330164-22-1)
- Phenylmethyl N-[2-oxo-1-(phenylmethyl)-2-(propylamino)ethyl]carbamate (CAS 1214144-38-3)
- 2-(2-Dimethylaminoethyl)pyridine (CAS 6304-27-4)
- 1-(Pyridin-2-ylmethyl)-1h-pyrazol-5-amine (CAS 956779-00-3)
- Loratadine Impurity 19 (CAS CATO-C4X-142619)
- Endo-Ala35-Tirzepatide (CAS CATO-CPTD788687)
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