5-oxo-5-phenyl-pent-2ξ-enoic acid is a chemical compound with the molecular formula C11H10O3. It is an organic compound characterized by a pentenoic acid structure, which features a five-carbon chain with a double bond between the second and third carbon atoms. The molecule contains a phenyl group (C6H5) attached to the fifth carbon, and a ketone group (C=O) at the fifth carbon as well, making it a 5-oxo derivative. 5-oxo-5-phenyl-pent-2ξ-enoic acid is known for its potential applications in the synthesis of various pharmaceuticals and other organic compounds due to its unique structure and reactivity. It is an important intermediate in organic chemistry, particularly in the preparation of certain drugs and natural products.

2128-99-6

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Basic information
1. Product Name: 5-oxo-5-phenyl-pent-2ξ-enoic acid
2. Synonyms: 5-oxo-5-phenyl-pent-2ξ-enoic acid
3. CAS NO:2128-99-6
4. Molecular Formula:
5. Molecular Weight: 190.199
6. EINECS: N/A
7. Product Categories: N/A
Chemical Properties
1. Melting Point: N/A
2. Boiling Point: N/A
3. Flash Point: N/A
4. Appearance: N/A
5. Density: N/A
6. Refractive Index: N/A
7. Storage Temp.: N/A
8. Solubility: N/A
9. CAS DataBase Reference: 5-oxo-5-phenyl-pent-2ξ-enoic acid(CAS DataBase Reference)
10. NIST Chemistry Reference: 5-oxo-5-phenyl-pent-2ξ-enoic acid(2128-99-6)
11. EPA Substance Registry System: 5-oxo-5-phenyl-pent-2ξ-enoic acid(2128-99-6)
Safety Data
1. Hazard Codes: N/A
2. Statements: N/A
3. Safety Statements: N/A
4. WGK Germany:
5. RTECS:
6. HazardClass: N/A
7. PackingGroup: N/A
8. Hazardous Substances Data: 2128-99-6(Hazardous Substances Data)

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Check Digit Verification of cas no

The CAS Registry Mumber 2128-99-6 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 2,1,2 and 8 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 2128-99:
(6*2)+(5*1)+(4*2)+(3*8)+(2*9)+(1*9)=76
76 % 10 = 6
So 2128-99-6 is a valid CAS Registry Number.

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2128-90-7 6-phenyl-2H-pyran-2-one

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