(3as,7ar)-5,7-dibromo-3a-hydroxy-6-methoxy-3a,7a-dihydro-1-benzofuran-2(3h)-one 4361-28-8 KST-1A4839 CAS 4361-28-8
| CAS No. | 4361-28-8 |
| Molecular Formula | C9H16O |
| Molecular Weight | 140.22 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
(3as,7ar)-5,7-dibromo-3a-hydroxy-6-methoxy-3a,7a-dihydro-1-benzofuran-2(3h)-one 4361-28-8 KST-1A4839 (CAS 4361-28-8), molecular formula C9H16O and molecular weight 140.22 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C9H16O, (3as,7ar)-5,7-dibromo-3a-hydroxy-6-methoxy-3a,7a-dihydro-1-benzofuran-2(3h)-one 4361-28-8 KST-1A4839 contains a hydroxyl group, an ether linkage; these features give the compound characteristic functional-group stretching vibrations in infrared spectroscopy. The molecular weight of 140.22 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
As a certified reference material (CRM), (3as,7ar)-5,7-dibromo-3a-hydroxy-6-methoxy-3a,7a-dihydro-1-benzofuran-2(3h)-one 4361-28-8 KST-1A4839 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 | C9H16O |
| Molecular Weight | 140.22 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.) | 1958 |
Recommended Standards
- 4254-29-9 B77NA7SM29 Indan-2-ol 1H-Inden-2-ol, 2,3-dihydro- (9CI) EINECS 224-230-8 NSC 17485 UNII-B77NA7SM29 (CAS 4254-29-9)
- 4436-24-2 LKQ2758W1E Allylbenzene 2',3'-epoxide Benzene, (2,3-epoxypropyl)- Oxirane, (phenylmethyl)- (9CI) Phenylpropylene oxide 5-17-01-00590 (Beilstein Handbook Reference) AI3-24431 Allylbenzene oxide Allylbenzene 2',3'-oxide Benzylethylene oxide Benzyloxirane 2-Benzyloxirane BRN 0108023 CCRIS 1134 2',3'-Epoxyallylbenzene [French] (2,3-Epoxypropyl)benzene NSC 4327 (Phenylmethyl)oxirane 2',3'-Epoxyallylbenzene UNII-LKQ2758W1E (CAS 4436-24-2)
- 1-phenylprop-2-en-1-ol 42273-76-7 Vinylbenzyl alcohol (CAS 42273-76-7)
- 1H-2-benzopyran, 3,4-dihydro- 3,4-dihydro-1H-isochromene 493-05-0 InChI=1/C9H10O/c1-2-4-9-7-10-6-5-8(9)3-1/h1-4H,5-7H (CAS 493-05-0)
- 5-(Pyrrolidin-2-yl)-1H-1,2,4-triazole (CAS 933725-02-1)
- 1-({[(benzyloxy)carbonyl]amino}methyl)cyclopentane-1-carboxylic acid (CAS 1551609-92-7)
- 3-(1-Methyl-5-oxo-pyrrolidin-3-yl)-3-oxo-propionic acid methyl ester (CAS 1083282-29-4)
- 4-(2-Oxo-pyrrolidin-1-yl)-benzoic acid (CAS 36151-44-7)
- 3-Acetyl-5-chloro-2-hydroxy-6-methylbenzonitrile (CAS 1312686-22-8)
- Pent-4-en-1-ylbenzene (CAS 1075-74-7)
- 3-Bromo-6-(bromomethyl)-2-methylpyridine (CAS 123094-75-7)
- Lewis X Trisaccharide (CAS 71208-06-5)
- 1-Iodo-2-methoxy-3,5-bis(trifluoromethyl)benzene (CAS 197015-72-8)
- Tirzepatide Impurity 22 X TFA Salt (CAS CATO-C4X-324022)
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