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ChemicalBook >> CAS DataBase List >>4-Methylphthalazin-1(2H)-one

4-Methylphthalazin-1(2H)-one

4-Methylphthalazin-1(2H)-one Structure
4-Methylphthalazin-1(2H)-one structure
CAS No.
5004-48-8
Chemical Name:
4-Methylphthalazin-1(2H)-one
Synonyms
-one;NSC 116342;ICX-56274004;AURORA KA-5078;4-Methylphthalazin-1-ol;4-Methyl-1-phthalazinol;4-Methyl-1-phthalazinone;4-Methylphthalazin-1(2H);4-METHYL-1(2H)-PHTHALAZINONE;4-METHYL-2H-PHTHALAZIN-1-ONE
CBNumber:
CB3475472
Molecular Formula:
C9H8N2O
Molecular Weight:
160.17
MDL Number:
MFCD00024098
MOL File:
5004-48-8.mol
MSDS File:
SDS
TDS File:
TDS
Last updated:2026-09-12 18:52:05
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4-Methylphthalazin-1(2H)-one Properties

Melting point 223-224°C
Density 1.26±0.1 g/cm3(Predicted)
storage temp. Sealed in dry,Room Temperature
solubility Chloroform (Slightly), Methanol (Slightly)
pka 12.32±0.40(Predicted)
form crystalline powder
color Pale yellow
InChI InChI=1S/C9H8N2O/c1-6-7-4-2-3-5-8(7)9(12)11-10-6/h2-5H,1H3,(H,11,12)
InChIKey QRNVHFPDZAZUGX-UHFFFAOYSA-N
SMILES C1(=O)C2=C(C=CC=C2)C(C)=NN1
CAS DataBase Reference 5004-48-8

SAFETY

Risk and Safety Statements

Symbol(GHS)  Exclamation Mark (GHS07)
GHS07
Signal word  Warning
Hazard statements  H302-H315-H319-H335
Precautionary statements  P261-P305+P351+P338
HS Code  2933998090

4-Methylphthalazin-1(2H)-one price More Price(44)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich S246468 4-METHYL-2H-PHTHALAZIN-1-ONE AldrichCPR 5004-48-8 25mg $29.8 2024-03-01 Buy
TRC TRC-H948285-50MG Hydroxy-4-methylphthalazine 5004-48-8 50mg $161 2026-06-03 Buy
TRC TRC-H948285-25MG Hydroxy-4-methylphthalazine 5004-48-8 25mg $135 2026-06-03 Buy
TRC TRC-H948285-100MG Hydroxy-4-methylphthalazine 5004-48-8 100mg $300 2026-06-03 Buy
AstaTech 63116 1-HYDROXY-4-METHYLPHTHALAZINE 97% 5004-48-8 1G $43 2026-04-30 Buy
Product number Packaging Price Buy
S246468 25mg $29.8 Buy
TRC-H948285-50MG 50mg $161 Buy
TRC-H948285-25MG 25mg $135 Buy
TRC-H948285-100MG 100mg $300 Buy
63116 1G $43 Buy

4-Methylphthalazin-1(2H)-one Chemical Properties, Uses, Production

Chemical Properties

Colourless Cyrstalline Solid

Uses

Hydroxy-4-methylphthalazine (cas# 5004-48-8) is a compound useful in organic synthesis.

4-Methylphthalazin-1(2H)-one Preparation Products And Raw materials

Raw materials

Preparation Products

4-Methylphthalazin-1(2H)-one Suppliers

Global Suppliers ( 95)
Supplier Tel Email Country ProdList Advantage
Biokitchen 021-021-021-31663258 13795219287 donghuanwen@126.com China 3077 58
J & K SCIENTIFIC LTD. 18210857532 18210857532 jkinfo@jkchemical.com China 96815 76
PharmaBlock Sciences (Nanjing),Inc. 025-86918202 4000255188 sales@pharmablock.com China 5000 55
Chemsky（shanghai）International Co.,Ltd. 021-50135380 shchemsky@sina.com China 32273 50
Shanghai Ennopharm Co., Ltd. +86 (21) 6435-5022 China 4263 65
Hunan Hui Bai Shi Biotechnology Co., Ltd. 0731-85526065 13308475853 ivy@hnhbsj.com China 7236 62
Wuhan ariel chemical Co., LTD. 18986259541 18986259541 sales@3stc.com China 3829 58
CEG Chemical Science&Technology Co., Ltd. Mobile:13665161512 China 1784 58
Taizhou Tongxin Bio-Tech Co., Ltd 0523-86818997 18652728585 sales@allyrise.com China 2986 60
Bide Pharmatech Ltd. 400-164-7117 18317119277 product02@bidepharm.com China 40000 60
Supplier Advantage
Biokitchen 58
J & K SCIENTIFIC LTD. 76
PharmaBlock Sciences (Nanjing),Inc. 55
Chemsky（shanghai）International Co.,Ltd. 50
Shanghai Ennopharm Co., Ltd. 65
Hunan Hui Bai Shi Biotechnology Co., Ltd. 62
Wuhan ariel chemical Co., LTD. 58
CEG Chemical Science&Technology Co., Ltd. 58
Taizhou Tongxin Bio-Tech Co., Ltd 60
Bide Pharmatech Ltd. 60

4-Methylphthalazin-1(2H)-one Spectrum

4-METHYLPHTHALAZIN-1(2H)-ONE(5004-48-8)1HNMR4-METHYLPHTHALAZIN-1(2H)-ONE(5004-48-8)FT-IR

5004-48-8 (4-Methylphthalazin-1(2H)-one) Related Search:

(4-Oxo-3,4-dihydrophthalazin-1-yl)acetic acid 4-(4-Chlorophenyl)-1-(2H)-phthalazinone& 4-Methylphthalazin-1(2H)-one (4-Oxo-3,4-dihydro-phthalazin-1-yl)-acetic acid ethyl ester 4-Phenyl-1(2H)-phthalazinone
N-Benzyl-3-(4-chlorophenyl)-4-oxo-3,4-dihydro-1-phthalazinecarboxamide 3-(4-Chlorophenyl)-N-(2,4-dichlorophenyl)-4-oxo-3,4-dihydro-1-phthalazinecarboxamide 3-(4-Chlorophenyl)-N-(4-methoxyphenyl)-4-oxo-3,4-dihydro-1-phthalazinecarboxamide 3-(4-Chlorophenyl)-4-oxo-N-[3-(trifluoromethyl)phenyl]-3,4-dihydro-1-phthalazinecarboxamide 4-Oxo-3-[3-(trifluoromethyl)phenyl]-3,4-dihydro-1-phthalazinecarboxamide
3-(4-Chlorophenyl)-4-oxo-3,4-dihydro-1-phthalazinecarboxamide Ethyl 2-(3-([4-(tert-butyl)-1,3-thiazol-2-yl]methyl)-4-oxo-3,4-dihydrophthalazin-1-yl)acetate 4-Amino-8-methylphthalazin-1(2H)-one 2-(5-Chloro-2-nitrophenyl)-4-methylphthalazin-1(2H)-one 4-Oxo-3-phenyl-3,4-dihydro-1-phthalazinecarboxamide
3-(4-Chlorophenyl)-N-(2,4-difluorophenyl)-4-oxo-3,4-dihydro-1-phthalazinecarboxamide 3-(4-Fluorophenyl)-4-oxo-3,4-dihydro-1-phthalazinecarboxamide 3-(4-Methoxyphenyl)-4-oxo-3,4-dihydro-1-phthalazinecarboxamide

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4-METHYL-2H-PHTHALAZIN-1-ONE AURORA KA-5078 1-Methylphthalazine-4(3H)-one ICX-56274004 4-methyl-1(2H)-phthalazinone(SALTDATA: FREE) 4-Methyl-1-phthalazinol 4-Methyl-1-phthalazinone NSC 116342 4-Methylphthalazin-1-ol 1(2H)-Phthalazinone, 4-methyl- 4-METHYL-1(2H)-PHTHALAZINONE 1-hydroxy-4-methylphthalazine 1-methyl-3,4-dihydro-4-oxophthalazine 4-Methylphthalazin-1(2H) 4-methyl-1,2-dihydrophthalazin-1-one -one 4-methyl-1,2-dihydrophthalazin-1-one - [M86835] 4-methyl-1(2H)-diazanaphthaleneone 4-Methylphthalazin-1(2H)-one 5004-48-8 Miscellaneous Reagents