1-Acetyl-3-methyl-2-pyrazolin-5-one is a chemical compound with the molecular formula C6H7N2O2. It is a derivative of pyrazolin-5-one, featuring an acetyl group (CH3CO-) at the 1-position and a methyl group (CH3-) at the 3-position. This heterocyclic compound is known for its potential applications in pharmaceuticals and as a synthetic intermediate in the preparation of various chemical compounds. Its structure and properties make it a subject of interest in organic chemistry, particularly in the synthesis of complex molecules and the study of reaction mechanisms.

5203-92-9

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Basic information
1. Product Name: 1-Acetyl-3-methyl-2-pyrazolin-5-one
2. Synonyms: 1-Acetyl-3-methyl-2-pyrazolin-5-one
3. CAS NO:5203-92-9
4. Molecular Formula: C6H8N2O2
5. Molecular Weight: 140.14
6. EINECS: N/A
7. Product Categories: N/A
8. Mol File: 5203-92-9.mol
Chemical Properties
1. Melting Point: N/A
2. Boiling Point: N/A
3. Flash Point: N/A
4. Appearance: /
5. Density: N/A
6. Refractive Index: N/A
7. Storage Temp.: N/A
8. Solubility: N/A
9. CAS DataBase Reference: 1-Acetyl-3-methyl-2-pyrazolin-5-one(CAS DataBase Reference)
10. NIST Chemistry Reference: 1-Acetyl-3-methyl-2-pyrazolin-5-one(5203-92-9)
11. EPA Substance Registry System: 1-Acetyl-3-methyl-2-pyrazolin-5-one(5203-92-9)
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: 5203-92-9(Hazardous Substances Data)

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Check Digit Verification of cas no

The CAS Registry Mumber 5203-92-9 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 5,2,0 and 3 respectively; the second part has 2 digits, 9 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 5203-92:
(6*5)+(5*2)+(4*0)+(3*3)+(2*9)+(1*2)=69
69 % 10 = 9
So 5203-92-9 is a valid CAS Registry Number.

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