3,4-Dihydro-5-methoxy-6-methyl-2-phenyl-2h-1-benzopyran-7-ol CAS 55670-26-3
| CAS No. | 55670-26-3 |
| Molecular Formula | C17H18O3 |
| Molecular Weight | 270.32 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 3,4-Dihydro-5-methoxy-6-methyl-2-phenyl-2h-1-benzopyran-7-ol (CAS 55670-26-3), a certified reference material (molecular formula C17H18O3, MW 270.32 g/mol) for analytical method development and quality control.
Owing to a steroid core, a hydroxyl group, an ether linkage, 3,4-Dihydro-5-methoxy-6-methyl-2-phenyl-2h-1-benzopyran-7-ol is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 270.32 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).
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), 3,4-Dihydro-5-methoxy-6-methyl-2-phenyl-2h-1-benzopyran-7-ol 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 | C17H18O3 |
| Molecular Weight | 270.32 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1972 |
Related Dihydro Standards
- 6,13-dihydro-5H-indolo[3,2-c]acridine (CAS 209268-82-6)
- 3-(3,4-dihydro-2H-1,5-benzodioxepine-7-sulfinyl)propanoic acid (CAS 1333887-32-3)
- 1-(2,3-Dihydro-1,4-benzodioxine-6-sulfonyl)azetidin-3-amine (CAS 1423028-22-1)
- 1,6-Dihydro-5-(2-hydroxyphenyl)-3-propyl-7H-pyrazolo[4,3-d]pyrimidin-7-one 1159977-45-3 5-(2-Hydroxyphenyl)-1,6-dihydro-3-propyl-7H-pyrazolo[4,3-d]pyrimidin-7-one 5-(2-Hydroxyphenyl)-3-propyl-1,6-dihydro-7H-pyrazolo[4,3-d]pyrimidin-7-one (CAS 1159977-45-3)
- (3R)-2,3-Dihydro-7-hydroxy-3-[(4-hydroxyphenyl)methyl]-4H-1-benzopyran-4-one (CAS 1178893-64-5)
- 3-((2,3-Dihydro-1h-inden-5-yl)oxy)-5-nitroaniline (CAS 310451-89-9)
- 4-(3,4-Dihydro-2H-benzo[b][1,4]dioxepin-7-yl)benzoic acid (CAS 952183-13-0)
- Methyl 2-(2,3-dihydro-1,4-benzodioxin-6-yl) benzoate (CAS 893736-68-0)
Recommended Standards
- 3-(benzyloxy)-6-methyl-4-oxo-4H-pyran-2-carboxylic acid (CAS 216581-47-4)
- 3-[(2,3-dimethylphenoxy)methyl]-4-methoxybenzaldehyde (CAS 438530-90-6)
- 3-(4-(Benzyloxy)-3-methoxyphenyl)propanal (CAS 69172-20-9)
- 3-[(2,5-dimethylphenoxy)methyl]-4-methoxybenzaldehyde (CAS 438219-83-1)
- (1-Oxa-4-azaspiro[4.4]Nonane-3,3-diyl)dimethanol (CAS 72031-11-9)
- Methyl 2-(3-Amino-4-chlorophenyl)acetate (CAS 59833-69-1)
- 1-(2,6-Dichlorophenyl)-3-(3,4-difluorophenyl)propan-1-one (CAS 898777-52-1)
- Iodosulfuron (CAS 185119-76-0)
- 2-(4-Bromo-2-chlorophenoxy)butanoic acid (CAS 861507-54-2)
- 3-(4-Hydroxyphenyl)-3-oxopropyl benzoate (CAS 65133-93-9)
- 2,6,6-Trimethyl-1-(p-tolyl)-6,7-dihydro-1H-indol-4(5H)-one (CAS 163083-04-3)
- 1,1'-(phenylphosphorothioyl)bis(2-methylaziridine) 23190-17-2 KST-1B1953 (CAS 23190-17-2)
- Methyl (2R)-2-amino-3-methyl-3-[(2-methylpropan-2-yl)oxycarbonylamino]butanoate (CAS 1093198-33-4)
- Biotinyl-CBP501 Affinity Peptide trifluoroacetate salt (CAS 2022956-39-2)
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