ChemicalBook >> CAS DataBase List >>1,4-Dioxo-1,2,3,4-tetrahydrophthalazine-6-carboxylic acid

1,4-Dioxo-1,2,3,4-tetrahydrophthalazine-6-carboxylic acid

1,4-Dioxo-1,2,3,4-tetrahydrophthalazine-6-carboxylic acid structure

CAS No.: 42972-13-4

Chemical Name:: 1,4-Dioxo-1,2,3,4-tetrahydrophthalazine-6-carboxylic acid

Synonyms: NSC211205;A3993/0170153;6-Carboxyphthalhydrazide;1,4-dioxo-2,3-dihydrophthalazine-6-carboxylic acid;1,4-diketo-2,3-dihydrophthalazine-6-carboxylic acid;3,4-Dihydro-1-hydroxy-4-oxo-6-phthalazinecarboxylic acid;6-Phthalazinecarboxylicacid, 3,4-dihydro-1-hydroxy-4-oxo-;6-phthalazinecarboxylic acid, 1,2,3,4-tetrahydro-1,4-dioxo;Ammonium (1,4-dioxo-1,2,3,4-tetrahydrophthalazine-6-carboxylic acid)acetate

CBNumber:: CB91491699

Molecular Formula:: C9H6N2O4

Molecular Weight:: 206.15

MDL Number:: MFCD06371360

MOL File:: 42972-13-4.mol

MSDS File:: SDS

Last updated:2026-09-12 18:56:02

Request For Quotation

1,4-Dioxo-1,2,3,4-tetrahydrophthalazine-6-carboxylic acid Properties

Density	1.540±0.06 g/cm3(Predicted)
storage temp.	Sealed in dry,Room Temperature
pka	3.50±0.20(Predicted)
Appearance	Off-white to light yellow Solid

SAFETY

Risk and Safety Statements

Symbol(GHS)	GHS07
Signal word	Warning
Hazard statements	H315-H319-H335
Precautionary statements	P261-P305+P351+P338

1,4-Dioxo-1,2,3,4-tetrahydrophthalazine-6-carboxylic acid price More Price(44)

Manufacturer	Product number	Product description	CAS number	Packaging	Price	Updated	Buy
Matrix Scientific	154623	Ammonium (1,4-dioxo-1,2,3,4-tetrahydrophthalazine-6-carboxylic acid)acetate	42972-13-4	250.00mg	$31	2026-05-18	Buy
Matrix Scientific	154623	Ammonium (1,4-dioxo-1,2,3,4-tetrahydrophthalazine-6-carboxylic acid)acetate	42972-13-4	1.00g	$65	2026-05-18	Buy
Matrix Scientific	154623	Ammonium (1,4-dioxo-1,2,3,4-tetrahydrophthalazine-6-carboxylic acid)acetate	42972-13-4	5.00g	$217	2026-05-18	Buy
Synthonix	D50835	1,4-Dioxo-1,2,3,4-tetrahydrophthalazine-6-carboxylic acid 95%	42972-13-4	100mg	$63	2026-05-06	Buy
Synthonix	D50835	1,4-Dioxo-1,2,3,4-tetrahydrophthalazine-6-carboxylic acid 95%	42972-13-4	250mg	$68	2026-05-06	Buy

Product number	Packaging	Price	Buy
154623	250.00mg	$31	Buy
154623	1.00g	$65	Buy
154623	5.00g	$217	Buy
D50835	100mg	$63	Buy
D50835	250mg	$68	Buy

1,4-Dioxo-1,2,3,4-tetrahydrophthalazine-6-carboxylic acid Chemical Properties, Uses, Production

Synthesis

552-30-7

42972-13-4

The general procedure for the synthesis of 1,4-dioxo-1,2,3,4-tetrahydrophthalazine-6-carboxylic acid from trimellitic anhydride was as follows: hydrazine hydrate (26 g, 0.52 mol) was added in a single addition to a stirred solution of acetic acid (1.0 L) of trimellitic anhydride (100 g, 0.52 mol) at room temperature. Subsequently, the reaction mixture was heated to 120 °C and maintained for 2 hours. After completion of the reaction, the mixture was cooled to room temperature. The solid product was collected by filtration and washed with deionized water (250 ml). Finally, the product was dried in a vacuum oven at 50 °C for 20 h to afford 1,4-dioxo-1,2,3,4-tetrahydrophthalazine-6-carboxylic acid (91 g, 85% yield).

References

[1] Patent: WO2006/32518, 2006, A1. Location in patent: Page/Page column 175
[2] Patent: US2007/219195, 2007, A1. Location in patent: Page/Page column 46; 64
[3] Chemical Communications, 2009, # 42, p. 6367 - 6369

1,4-Dioxo-1,2,3,4-tetrahydrophthalazine-6-carboxylic acid Preparation Products And Raw materials

Raw materials

Trimellitic Anhydride HYDRAZINE Acetic acid

Preparation Products

1,4-Dioxo-1,2,3,4-tetrahydrophthalazine-6-carboxylic acid Suppliers

Global Suppliers ( 44)

Supplier	Tel	Email	Country	ProdList	Advantage
Nanjing Chemlin Chemical Co., Ltd	025-83697070 13770331960	info@chemlin.com.cn	China	16306	64
Shanghai Run-Biotech Co., Ltd.	021-57171705 13817537615	sales@run-biotech.com	China	2277	58
Tianjin Englon Technology Co., LTD	010-010-1234567 17526513758	2062435649@qq.com	China	97	49
Shanghai YuLue Chemical Co., Ltd.	021-60345187 13671753212	lzz841106@aliyun.com	China	10244	55
Shanghai Uchem Inc.	15618758386 15618758386	sales3@myuchem.com	China	1994	55
JW & Y Pharmlab Co., Ltd.	021-64340559	xinyu_shi@jwypharmlab.com.cn	China	11999	58
Shanghai YuanYe Biotechnology Co., Ltd.	15026964105	2881489226@qq.com	China	89667	60
Amadis Chemical Company Limited	571-89925085	sales@amadischem.com	China	131885	58
Sichuan BoYou Biotechnology Co., Ltd.	028-65791793 18140026355	568470422@qq.com	China	9961	58
Aikon International Limited	025-58859352 13913916777	dt3@aikonchem.com	China	15490	58

Supplier	Advantage
Nanjing Chemlin Chemical Co., Ltd	64
Shanghai Run-Biotech Co., Ltd.	58
Tianjin Englon Technology Co., LTD	49
Shanghai YuLue Chemical Co., Ltd.	55
Shanghai Uchem Inc.	55
JW & Y Pharmlab Co., Ltd.	58
Shanghai YuanYe Biotechnology Co., Ltd.	60
Amadis Chemical Company Limited	58
Sichuan BoYou Biotechnology Co., Ltd.	58
Aikon International Limited	58

1,4-Dioxo-1,2,3,4-tetrahydrophthalazine-6-carboxylic acid Spectrum

1,4-DIOXO-1,2,3,4-TETRAHYDROPHTHALAZINE-6-CARBOXYLIC ACID(42972-13-4)¹HNMR

42972-13-4 (1,4-Dioxo-1,2,3,4-tetrahydrophthalazine-6-carboxylic acid) Related Search:

1,4-Dioxo-1,2,3,4-tetrahydrophthalazine-6-carboxylic acid 4-Hydrazinomethyl-benzoic acid 2,5-Dimethyl-benzyl-hydrazine 1-(2,4-dimethylbenzyl)hydrazine 6-Phthalazinecarboxylic acid, 8-amino-1,2,3,4-tetrahydro-1,4-dioxo-

6,7-Dimethyl-2,3-dihydrophthalazine-1,4-dione

1of2

6-phthalazinecarboxylic acid, 1,2,3,4-tetrahydro-1,4-dioxo 6-Phthalazinecarboxylicacid, 3,4-dihydro-1-hydroxy-4-oxo- 1,4-diketo-2,3-dihydrophthalazine-6-carboxylic acid 1,4-dioxo-2,3-dihydrophthalazine-6-carboxylic acid A3993/0170153 NSC211205 Ammonium (1,4-dioxo-1,2,3,4-tetrahydrophthalazine-6-carboxylic acid)acetate 3,4-Dihydro-1-hydroxy-4-oxo-6-phthalazinecarboxylic acid 6-Carboxyphthalhydrazide 42972-13-4