α,α′-Dimethoxy-γ-pyrone, also known as 2,2-dimethoxy-4H-pyran-4-one, is a heterocyclic organic compound characterized by a pyrone ring structure with two methoxy groups attached to the alpha positions. α,α′-dimethoxy-γ-pyrone is a colorless to pale yellow crystalline solid, soluble in organic solvents, and has a molecular formula of C7H8O4. It is synthesized through various methods, including the condensation of hydroxyacetone with formaldehyde in the presence of an acid catalyst. α,α′-Dimethoxy-γ-pyrone is used as a synthetic intermediate in the preparation of various pharmaceuticals, agrochemicals, and other organic compounds due to its versatile chemical properties and reactivity.
21249-80-9
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Basic information
- Product Name: α,α′-dimethoxy-γ-pyrone
- Synonyms: α,α′-dimethoxy-γ-pyrone
- CAS NO:21249-80-9
- Molecular Formula:
- Molecular Weight: 184.192
- EINECS: N/A
- Product Categories: N/A
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Chemical Properties
- Melting Point: N/A
- Boiling Point: N/A
- Flash Point: N/A
- Appearance: N/A
- Density: N/A
- Refractive Index: N/A
- Storage Temp.: N/A
- Solubility: N/A
- CAS DataBase Reference: α,α′-dimethoxy-γ-pyrone(CAS DataBase Reference)
- NIST Chemistry Reference: α,α′-dimethoxy-γ-pyrone(21249-80-9)
- EPA Substance Registry System: α,α′-dimethoxy-γ-pyrone(21249-80-9)
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Safety Data
- Hazard Codes: N/A
- Statements: N/A
- Safety Statements: N/A
- WGK Germany:
- RTECS:
- HazardClass: N/A
- PackingGroup: N/A
- Hazardous Substances Data: 21249-80-9(Hazardous Substances Data)
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Check Digit Verification of cas no
The CAS Registry Mumber 21249-80-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,1,2,4 and 9 respectively; the second part has 2 digits, 8 and 0 respectively.Calculate Digit Verification of CAS Registry Number 21249-80:
(7*2)+(6*1)+(5*2)+(4*4)+(3*9)+(2*8)+(1*0)=89
89 % 10 = 9
So 21249-80-9 is a valid CAS Registry Number.
21249-80-9Upstream product
21249-80-9Downstream Products
- 1343490-70-9 2-methoxy-3,5-dimethyl-6-((1E,3E)-4-phenylbuta-1,3-dienyl)-4H-pyran-4-one
- 1343490-69-6 2-((1E,3E)-4-(furan-2-yl)buta-1,3-dienyl)-6-methoxy-3,5-dimethyl-4H-pyran-4-one
- 1343490-72-1 2-methoxy-3,5-dimethyl-6-((1E,3E)-4-(4-nitrophenyl)buta-1,3-dienyl)-4H-pyran-4-one
- 1343490-52-7 (E)-2-(4-cyclohexyl-4-hydroxybut-1-enyl)-6-methoxy-3,5-dimethyl-4H-pyran-4-one
- 1343490-27-6 (E)-2-(4-hydroxy-4-(4-methoxyphenyl)but-1-enyl)-6-methoxy-3,5-dimethyl-4H-pyran-4-one
- 1343490-35-6 (E)-2-(4-hydroxy-4-phenylbut-1-enyl)-6-methoxy-3,5-dimethyl-4H-pyran-4-one
- 1343490-24-3 (E)-2-(4-hydroxy-4-(4-nitrophenyl)but-1-enyl)-6-methoxy-3,5-dimethyl-4H-pyran-4-one
- 1343490-49-2 2-((1E,5E)-4-hydroxy-5-methyl-6-(4-nitrophenyl)hexa-1,5-dienyl)-6-methoxy-3,5-dimethyl-4H-pyran-4-one
- 1343490-62-9 (E)-1-(furan-2-yl)-4-(6-methoxy-3,5-dimethyl-4-oxo-4H-pyran-2-yl)but-3-enyl benzoate
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α,α′-dimethoxy-γ-pyrone
