4-chloro-2-methylphthalazin-1-one

Modify Date: 2025-08-27 20:27:10

4-chloro-2-methylphthalazin-1-one Structure
4-chloro-2-methylphthalazin-1-one structure
 Common Name 4-chloro-2-methylphthalazin-1-one
CAS Number 40227-54-1 Molecular Weight 194.61800
Density N/A Boiling Point N/A
Molecular Formula C9H7ClN2O Melting Point N/A
MSDS N/A Flash Point N/A

 Names

Name 4-chloro-2-methylphthalazin-1-one
Synonym More Synonyms

 Chemical & Physical Properties

Molecular Formula C9H7ClN2O
Molecular Weight 194.61800
Exact Mass 194.02500
PSA 34.89000
LogP 1.58690

 Synthetic Route

4-CHLORO-1,2-DIHYDROPHTHALAZIN-1-ONE structure

4-CHLORO-1,2-DI...

CAS#:2257-69-4

Dimethyl sulfate structure

Dimethyl sulfate

CAS#:77-78-1

~91%

4-chloro-2-methylphthalazin-1-one Structure

4-chloro-2-meth...

CAS#:40227-54-1

Literature: Koermendy, K.; Ruff, F. Acta Chimica Academiae Scientiarum Hungaricae, 1981 , vol. 106, # 2 p. 155 - 166
2-phenyl-4-(2-methyl-4-chloro-1,2-dihydro-1-phthalazinylidene)benzohydrazidine structure

2-phenyl-4-(2-m...

CAS#:87878-22-6

~%

4-chloro-2-methylphthalazin-1-one Structure

4-chloro-2-meth...

CAS#:40227-54-1

Literature: Buzykin, B. I.; Bystrykh, N. N. Journal of Organic Chemistry USSR (English Translation), 1983 , vol. 19, # 5 p. 953 - 961 Zhurnal Organicheskoi Khimii, 1983 , vol. 19, # 5 p. 1069 - 1079
N/A structure

N/A

CAS#:64640-64-8

~%

4-chloro-2-methylphthalazin-1-one Structure

4-chloro-2-meth...

CAS#:40227-54-1

Literature: Buzykin, B. I.; Bystrykh, N. N. Journal of Organic Chemistry USSR (English Translation), 1983 , vol. 19, # 5 p. 953 - 961 Zhurnal Organicheskoi Khimii, 1983 , vol. 19, # 5 p. 1069 - 1079
2-methyl-3H-phthalazine-1,4-dione structure

2-methyl-3H-pht...

CAS#:18393-54-9

~%

4-chloro-2-methylphthalazin-1-one Structure

4-chloro-2-meth...

CAS#:40227-54-1

Literature: Satoda et al. Yakugaku Zasshi, 1957 , vol. 77, p. 703,706 Chem.Abstr., 1957 , p. 17927
Phthalic anhydride structure

Phthalic anhydride

CAS#:85-44-9

~%

4-chloro-2-methylphthalazin-1-one Structure

4-chloro-2-meth...

CAS#:40227-54-1

Literature: Satoda et al. Yakugaku Zasshi, 1957 , vol. 77, p. 703,706 Chem.Abstr., 1957 , p. 17927
1-(4-nitrophenyl)-3-phenyl-5-(2-methyl-4-chloro-1,2-dihydro-1-phthalazinylidene)-3-phenylformazan EE'E'' form structure

1-(4-nitropheny...

CAS#:87878-21-5

~%

2-(4-Nitrophenyl)-5-phenyl-2H-tetrazol structure

2-(4-Nitropheny...

CAS#:55134-99-1

4-chloro-2-methylphthalazin-1-one Structure

4-chloro-2-meth...

CAS#:40227-54-1

Literature: Buzykin, B. I.; Bystrykh, N. N. Journal of Organic Chemistry USSR (English Translation), 1983 , vol. 19, # 5 p. 953 - 961 Zhurnal Organicheskoi Khimii, 1983 , vol. 19, # 5 p. 1069 - 1079
1,3-diphenyl-5-(2-methyl-4-chloro-1,2-dihydro-1-phthalazinylidene)formazan EE'E'' form structure

1,3-diphenyl-5-...

CAS#:87878-20-4

~%

4-chloro-2-methylphthalazin-1-one Structure

4-chloro-2-meth...

CAS#:40227-54-1

2,5-Diphenyl-2H-tetrazole structure

2,5-Diphenyl-2H...

CAS#:18039-45-7

Literature: Buzykin, B. I.; Bystrykh, N. N. Journal of Organic Chemistry USSR (English Translation), 1983 , vol. 19, # 5 p. 953 - 961 Zhurnal Organicheskoi Khimii, 1983 , vol. 19, # 5 p. 1069 - 1079
4-CHLORO-1,2-DIHYDROPHTHALAZIN-1-ONE structure

4-CHLORO-1,2-DI...

CAS#:2257-69-4

methyl iodide structure

methyl iodide

CAS#:74-88-4

~%

4-chloro-2-methylphthalazin-1-one Structure

4-chloro-2-meth...

CAS#:40227-54-1

Literature: Abran, Arvacska; Csampai, Antal; Harmath, Veronika; Sohar, Pal ACH - Models in Chemistry, 1998 , vol. 135, # 4 p. 439 - 447
2-(4-nitrophenyl)-4-(2-methyl-4-chloro-1,2-dihydro-1-phthalazinylidene)benzohydrazidine structure

2-(4-nitropheny...

CAS#:85093-49-8

~0%

2-(4-Nitrophenyl)-5-phenyl-2H-tetrazol structure

2-(4-Nitropheny...

CAS#:55134-99-1

4-chloro-2-methylphthalazin-1-one Structure

4-chloro-2-meth...

CAS#:40227-54-1

1-(4-nitrophenyl)-3-phenyl-5-(2-methyl-4-chloro-1,2-dihydro-1-phthalazinylidene)-3-phenylformazan EE'E'' form structure

1-(4-nitropheny...

CAS#:87878-21-5

Literature: Buzykin, B. I.; Bystrykh, N. N. Journal of Organic Chemistry USSR (English Translation), 1983 , vol. 19, # 5 p. 953 - 961 Zhurnal Organicheskoi Khimii, 1983 , vol. 19, # 5 p. 1069 - 1079

 Synonyms

HMS607K11
4-chloro-2-methyl-2H-phthalazin-1-one
4-Chlor-2-methyl-2H-phthalazin-1-on
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