4-phenylethynyl-4,5-dihydro-pyrazole-3,3-dicarboxylic acid dimethyl ester is a complex organic compound with the molecular formula C16H14N2O4. It is a derivative of pyrazole, a five-membered heterocyclic ring containing three nitrogen atoms. The compound features a phenylethynyl group attached to the pyrazole ring, which is further fused with a dihydro-pyrazole ring. The molecule also contains two carboxylic acid groups, which are esterified with methanol to form dimethyl esters. This chemical structure endows the compound with unique properties, making it potentially useful in various applications, such as pharmaceuticals or materials science. However, further research and characterization are needed to fully understand its potential applications and properties.

2939-10-8

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Basic information
1. Product Name: 4-phenylethynyl-4,5-dihydro-pyrazole-3,3-dicarboxylic acid dimethyl ester
2. Synonyms:
3. CAS NO:2939-10-8
4. Molecular Formula:
5. Molecular Weight: 286.287
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: 4-phenylethynyl-4,5-dihydro-pyrazole-3,3-dicarboxylic acid dimethyl ester(CAS DataBase Reference)
10. NIST Chemistry Reference: 4-phenylethynyl-4,5-dihydro-pyrazole-3,3-dicarboxylic acid dimethyl ester(2939-10-8)
11. EPA Substance Registry System: 4-phenylethynyl-4,5-dihydro-pyrazole-3,3-dicarboxylic acid dimethyl ester(2939-10-8)
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: 2939-10-8(Hazardous Substances Data)

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Check Digit Verification of cas no

The CAS Registry Mumber 2939-10-8 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 2,9,3 and 9 respectively; the second part has 2 digits, 1 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 2939-10:
(6*2)+(5*9)+(4*3)+(3*9)+(2*1)+(1*0)=98
98 % 10 = 8
So 2939-10-8 is a valid CAS Registry Number.

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