(1R,2R,3S,4S)-bicyclo[2.2.1]Hept-5-ene-2,3-dicarboxylic acid CAS 21196-51-0
| CAS No. | 21196-51-0 |
| Molecular Formula | C9H10O4 |
| Molecular Weight | 182.17 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, an aromatic ring system, (1R,2R,3S,4S)-bicyclo[2.2.1]Hept-5-ene-2,3-dicarboxylic acid is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 182.17 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).
CATO supplies (1R,2R,3S,4S)-bicyclo[2.2.1]Hept-5-ene-2,3-dicarboxylic acid (CAS 21196-51-0), a certified reference material (molecular formula C9H10O4, MW 182.17 g/mol) for analytical method development and quality control.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), (1R,2R,3S,4S)-bicyclo[2.2.1]Hept-5-ene-2,3-dicarboxylic 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 | C9H10O4 |
| Molecular Weight | 182.17 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1963 |
Recommended Standards
- (1R,4S)-bicyclo[2.2.1]Hept-5-ene-2,3-dicarboxylic acid (CAS 196941-79-4)
- (2-(Trifluoromethyl)thiazol-4-yl)methanamine (CAS 852854-39-8)
- Ethyl 5-formyl-2-methylfuran-3-carboxylate (CAS 19615-48-6)
- (2E)-2,3-Difluoro-1-Phenyl-2-Buten-1-One (CAS 366799-74-8)
- Potassium 2-(2,2,2-trifluoroethoxy)acetate (CAS 1007036-34-1)
- 2-(4-Fluorophenyl)imidazo[1,2-a]pyrimidine-3-carbaldehyde (CAS 878436-47-6)
- 7-Fluoro-2,3-dihydrobenzofuran-3-carboxylic acid (CAS 1523136-07-3)
- Methyl 2-bromo-4,6-difluorobenzoate (CAS 1379336-54-5)
- (E)-N-Hydroxy-1-(1-methyl-1H-pyrrol-2-yl)methanimine (CAS 37110-15-9)
- 3,5-Dichloro-4-hydroxyphenyl-thiocyanate (CAS 14611-70-2)
- 7-Bromo-1-methyl-[1,2,4]triazolo[4,3-a]quinolin-4-amine (CAS 1300031-87-1)
- 3-(9,9-Dimethylacridin-10(9H)-yl)-9H-xanthen-9-one (CAS 1643983-89-4)
- 5-[(hydroxyimino)methyl]-1,3-thiazol-2-amine (CAS 51640-50-7)
- Semaglutide impurity 227 (CAS CATO-C4X-2226227)
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