4-amino-1,5-dimethyl-2-phenyl-1H-pyrazol-3(2H)-one is a chemical compound belonging to the pyrazolone class, characterized by a pyrazole ring fused with a lactone. This specific compound features an amino group at the 4-position, two methyl groups at the 1-position, and a phenyl group at the 2-position. It is known for its potential applications in pharmaceuticals and as an intermediate in the synthesis of various organic compounds. The compound's molecular formula is C12H13N3O, and it has a molecular weight of 213.25 g/mol. Its chemical structure and properties make it a versatile building block in organic chemistry, with potential uses in the development of drugs, dyes, and other specialty chemicals.

198-37-8

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Basic information
1. Product Name: 4-amino-1,5-dimethyl-2-phenyl-1H-pyrazol-3(2H)-one
2. Synonyms: 4-amino-1,5-dimethyl-2-phenyl-1H-pyrazol-3(2H)-one
3. CAS NO:198-37-8
4. Molecular Formula: C21H12 N2 O
5. Molecular Weight: 308.33
6. EINECS: N/A
7. Product Categories: N/A
8. Mol File: 198-37-8.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: 4-amino-1,5-dimethyl-2-phenyl-1H-pyrazol-3(2H)-one(CAS DataBase Reference)
10. NIST Chemistry Reference: 4-amino-1,5-dimethyl-2-phenyl-1H-pyrazol-3(2H)-one(198-37-8)
11. EPA Substance Registry System: 4-amino-1,5-dimethyl-2-phenyl-1H-pyrazol-3(2H)-one(198-37-8)
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: 198-37-8(Hazardous Substances Data)

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Check Digit Verification of cas no

The CAS Registry Mumber 198-37-8 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 1,9 and 8 respectively; the second part has 2 digits, 3 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 198-37:
(5*1)+(4*9)+(3*8)+(2*3)+(1*7)=78
78 % 10 = 8
So 198-37-8 is a valid CAS Registry Number.

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