1,4-Cyclohexadiene-1-carboxylicacid, ethyl ester 72431-21-1 CTK5D6094 CAS 72431-21-1
| CAS No. | 72431-21-1 |
| Molecular Formula | C9H12O2 |
| Molecular Weight | 152.19 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 1,4-Cyclohexadiene-1-carboxylicacid, ethyl ester 72431-21-1 CTK5D6094 (CAS 72431-21-1), a certified reference material (molecular formula C9H12O2, MW 152.19 g/mol) for analytical method development and quality control.
1,4-Cyclohexadiene-1-carboxylicacid, ethyl ester 72431-21-1 CTK5D6094 (C9H12O2) contains a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. 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.
As a certified reference material (CRM), 1,4-Cyclohexadiene-1-carboxylicacid, ethyl ester 72431-21-1 CTK5D6094 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 | C9H12O2 |
| Molecular Weight | 152.19 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1977 |
Related Cyclohexadiene Standards
- 1,4-Cyclohexadiene-1-carboxaldehyde, 4-(1-methylethyl)- 22580-90-1 CTK0J6289 (CAS 22580-90-1)
- 1,4-Cyclohexadiene-1,2-dicarboxylicanhydride (CAS 4773-89-1)
- 1,4-Cyclohexadiene Monoepoxide (CAS 6253-27-6)
- 1-Methyl-1,4-cyclohexadiene (CAS 4313-57-9)
- 1,3-cyclohexadiene 592-57-4 Cyclohexadiene-1,3 InChI=1/C6H8/c1-2-4-6-5-3-1/h1-4H,5-6H cyclohexa-1,3-diene (CAS 592-57-4)
- (Cyclohexadiene)iron tricarbonyl (CAS 12152-72-6)
- 2,2-(2,5-Cyclohexadiene-1,4-diylidene)bis-hydrazinecarboximidamide Sulfate (CAS 89473-29-0)
Recommended Standards
- 2-[(Pyridin-3-ylmethyl)-amino]-ethanol 3-[(2-hydroxyethyl) aminomethyl] pyridine 2-((pyridin-3-ylmethyl)amino)ethanol 2-[(pyridin-3-ylmethyl)amino]ethan-1-ol 70206-51-8 (CAS 70206-51-8)
- 5-Norbornene-2-acetic Acid 825-71-8 (CAS 825-71-8)
- 3,4-Dihydroquinazolin-4-one 4(1H)-Quinazolinone 4(3H)-Quinazolinone 4(3H)-Quinazolone 4-Hydroxyquinazoline 4-Oxo-3,4-dihydroquinazoline 4-Oxoquinazoline 4-Quinazolinol 4-Quinazolinone 4-Quinazolone 491-36-1 Quinazolinone (CAS 491-36-1)
- 851434-82-7 3-Methyl-5-(pyrrolidin-2-yl)-1,2-oxazole DTXSID30569812 (CAS 851434-82-7)
- 2-(4-Bromo-2-chlorophenyl)ethanamine (CAS 874285-01-5)
- 5-Formyl-1-methyl-1H-imidazole-2-carbonitrile (CAS 944900-78-1)
- 3-Ethyl-1-propyl-8-(1-((6-(trifluoromethyl)pyridin-3-yl)methyl)-1H-pyrazol-4-yl)-3,9-dihydro-1H-purine-2,6-dione (CAS 631914-03-9)
- 3-(3-Chlorobenzenesulfonyl)-6,7-difluoro-1-[(3-methylphenyl)methyl]-1,4-dihydroquinolin-4-one (CAS 1326942-17-9)
- 3-Methyl-2-phenyl-2,3-dihydrobenzo[d]thiazole (CAS 16192-33-9)
- 3-(Trifluoromethyl)-1,4,5,6-tetrahydrocyclopenta[c]pyrazole (CAS 347361-46-0)
- ammonium [(1R,3S,4S)-3-bromo-1,7-dimethyl-2-oxobicyclo[2.2.1]heptan-7-yl]methanesulfonate (CAS 1262985-34-1)
- 3-(2-Chlorophenoxy)azetidine (CAS 954222-94-7)
- 4-(4-Fluorophenyl)-2-methylthiazole (CAS 450-29-3)
- Semaglutide impurity 55 (CAS CATO-C4X-222655)
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