5-Chloro-3,4-dihydro-2h-1-benzopyran-3-one CAS 1154740-80-3
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 1154740-80-3 |
| Molecular Formula | C9H7ClO2 |
| Molecular Weight | 182.60 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
5-Chloro-3,4-dihydro-2h-1-benzopyran-3-one (CAS 1154740-80-3) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C9H7ClO2. Molecular weight: 182.60 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C9H7ClO2 |
| Molecular Weight | 182.60 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1989 |
| Halogen Content | Cl-containing |
Related Chloro Standards
- 5-Chloro-7-methylisobenzofuran-1(3H)-one (CAS 118343-26-3)
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- 5-Chloro-2,3-dihydrochromen-4-one (CAS 1199782-82-5)
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- 6-Chloro-5-hydroxy-2,3-dihydro-1H-inden-1-one (CAS 1260012-31-4)
- 2-Chloro-4-ethenylbenzoic acid (CAS 1266121-77-0)
- 5-Chloro-2-vinylbenzoic acid (CAS 1467773-21-2)
Recommended Standards
- 4-chlorobicyclo[4.2.0]octa-1(6),2,4-triene-7-carboxylic acid (CAS 1135492-13-5)
- (6-Chlorobenzofuran-2-yl)methanol (CAS 1089682-04-1)
- 1-(4-Chlorophenyl)propane-1,2-dione (CAS 10557-21-8)
- 7-Chloro-N-(2-(dimethylamino)ethyl)benzo[c][1,2,5]oxadiazole-4-sulfonamide (CAS 664985-43-7)
- TRimethyl[(2-methylferrocenyl)methyl]ammonium iodide (CAS 12111-93-2)
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- Tert-butyl (3,3,4,4,5,5,6,6,6-nonafluorohexyl) carbonate (CAS 1980085-06-0)
- 7-Bromo-2,6-dichloroquinazolin-4-amine (CAS 2384855-93-8)
- 2-Propenoic acid, 2-methyl-, methyl ester, polymer with 2-hydroxyethyl 2-propenoate and 2-propenoic acid (CAS 66747-40-8)
- 81988-89-8 UH11FDQ454 Ramoplanin A(sub 3) Ramoplanin A3 (S)-2-(3-Chloro-4-hydroxyphenyl)-N-(N(sup 2)-((2Z,4Z)-8-methyl-2,4-nonadienoyl)-(S)-asparaginyl-(2S,3S)-3-hydroxyasparaginyl-(R)-2-(p-hydroxyphenyl)glycyl-(R)-ornithyl-(2R,3R)-allothreonyl-2-(p-hydroxyphenyl)glycyl-2-(p-hydroxyphenyl)glycyl-(2S,3S)-allothreonyl-(S)-phenylalanyl-(R)-ornithyl-(S)-2-(p-((2-O-alpha-D-mannopyranosyl-alpha-D-mannopyranosyl)oxy)phenyl)glycyl-(2R,3R)-allothreonyl-(S)-2-(p-hydroxyphenyl)glycylglycyl-(S)-leucyl-(R)-alanyl)glycine psi1-lactone Ramoplanin A 1 (peptide moiety), 1-(N(sup 2)-methyl-1-oxo-2,4-nonadienyl)-L-asparagine)-11-(L-2-(4-((2-O-alpha-D-mannopyranosyl-alpha-D-mannopyranosyl)oxy)phenyl)glycine)-, (Z,Z)- UNII-UH11FDQ454 (CAS 81988-89-8)
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