(E)-3,5-Dimethylhept-2-enoic acid CAS 219997-96-3
| CAS No. | 219997-96-3 |
| Molecular Formula | C9H16O2 |
| Molecular Weight | 156.22 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
(E)-3,5-Dimethylhept-2-enoic acid (CAS 219997-96-3), molecular formula C9H16O2 and molecular weight 156.22 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, (E)-3,5-Dimethylhept-2-enoic acid is typically white to off-white crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 156.22 g/mol — guide the selection of appropriate sample preparation and analytical techniques.
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), (E)-3,5-Dimethylhept-2-enoic 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 | C9H16O2 |
| Molecular Weight | 156.22 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | Stable under recommended storage conditions |
| Degree of Unsaturation (DBE) | 2.0 |
| CAS Registry Year (est.) | 2019 |
Related E Standards
- (E)-6,6-dimethylhept-2-en-4-ynoic acid (CAS 54599-50-7)
- 2,6-Dimethylhept-6-en-2-ol (CAS 32779-58-1)
- 6,6-Dimethylhept-1-en-4-one (CAS 159388-97-3)
- 3,6-Dimethylhept-1-yn-3-ol (CAS 19549-98-5)
- 4,4-Dimethylhept-6-en-3-one (CAS 29511-87-3)
- 2,2-Dimethylhept-6-yn-3-one (CAS 51060-08-3)
- 6,6-Dimethylhept-1-en-4-yn-3-ol (CAS 78629-20-6)
- Ethyl 6,6-dimethylhept-2-en-4-ynoate (CAS 60739-66-4)
Recommended Standards
- (5S,7S)-7-Methyl-1,6-dioxaspiro[4.5]decane (CAS 77715-03-8)
- (E)-4-methyl-2-(pent-1-en-1-yl)-1,3-dioxolane (CAS 94089-21-1)
- (4R,6R)-Actinol (CAS 60046-50-6)
- (E)-hex-2-en-1-yl propionate (CAS 53398-80-4)
- 2-((4-Aminophenyl)thio)acetonitrile (CAS 83591-70-2)
- Tert-butyl (2S,3S)-3-amino-2-methylpyrrolidine-1-carboxylate (CAS 1192608-69-7)
- 3-(Dimethylamino)-1H-isoindol-1-one (CAS 89130-76-7)
- (3AR,4S,5R,6R,7S,7aS)-2,2-dimethylhexahydrobenzo[d][1,3]dioxole-4,5,6,7-tetraol (CAS 26276-97-1)
- 2,7-Dimethyloctane-3,6-dione (CAS 51513-41-8)
- Azilsartan Impurity 123 (CAS CATO-C4X-1096123)
- 2-Cyclohexyl-1,3-oxazole-4-carboxylic acid (CAS 66493-06-9)
- 1-((Tetrahydrofuran-3-yl)methyl)-1H-pyrazol-3-amine (CAS 1248173-28-5)
- 4-(4,5-Diphenyl-1H-imidazol-2-yl)pyridine (CAS 13319-97-6)
- Neuropeptide W-23 (human) (CAS 383415-79-0)
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