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Phthalhydrazide

Phthalhydrazide structure

CAS No.: 1445-69-8

Chemical Name:: Phthalhydrazide

Synonyms: 2,3-DIHYDROPHTHALAZINE-1,4-DIONE;PHTHALIC HYDRAZIDE;Phthalohydrazide;2,3-DIHYDRO-1,4-PHTHALAZINEDIONE;PHTHALHYDRAZINE;PHTHALHYDRAZIDE;Phthalhydrizide;PHTALYLHYDRAZINE;PHTHALOYLHYDRAZINE;Phthalodihydrazide

CBNumber:: CB4132853

Molecular Formula:: C8H6N2O2

Molecular Weight:: 162.15

MDL Number:: MFCD00006888

MOL File:: 1445-69-8.mol

MSDS File:: SDS

TDS File:: TDS

Last updated:2026-05-28 02:41:06

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Phthalhydrazide Properties

Melting point	>300 °C (lit.)
Boiling point	288.82°C (rough estimate)
Density	1.3264 (rough estimate)
refractive index	1.5770 (estimate)
storage temp.	Sealed in dry,Room Temperature
solubility	Soluble in acetone and acetic acid.
form	Powder and Chunks
pka	10.70±0.20(Predicted)
color	White
BRN	135926
InChI	InChI=1S/C8H6N2O2/c11-7-5-3-1-2-4-6(5)8(12)10-9-7/h1-4H,(H,9,11)(H,10,12)
InChIKey	KGLPWQKSKUVKMJ-UHFFFAOYSA-N
SMILES	C1(=O)C2=C(C=CC=C2)C(=O)NN1
CAS DataBase Reference	1445-69-8(CAS DataBase Reference)
EWG's Food Scores	1
FDA UNII	YNX3Y8MV3B
UNSPSC Code	12352100
NACRES	NA.22

SAFETY

Risk and Safety Statements

Symbol(GHS)

GHS07

Signal word

Warning

Hazard statements

H315-H319-H335

Precautionary statements

P261-P305+P351+P338

Safety Statements

24/25

WGK Germany

RTECS

TH8890080

HS Code

29280000

Storage Class

11 - Combustible Solids

Toxicity

mouse,LD50,intraperitoneal,700mg/kg (700mg/kg),Archiv der Pharmazie Vol. 327, Pg. 237, 1994.

NFPA 704

	1
0		0

Phthalhydrazide price More Price(64)

Manufacturer	Product number	Product description	CAS number	Packaging	Price	Updated	Buy
Sigma-Aldrich	P38803	Phthalhydrazide ReagentPlus , 99%	1445-69-8	25g	$62.7	2026-04-30	Buy
TCI Chemical	P0354	Phthalic Hydrazide >98.0%(HPLC)(T)	1445-69-8	25g	$21	2026-04-30	Buy
TCI Chemical	P0354	Phthalic Hydrazide >98.0%(HPLC)(T)	1445-69-8	500g	$232	2026-04-30	Buy
Usbiological	287525	Phthalhydrazide Asreported	1445-69-8	100g	$393	2026-06-03	Buy
Usbiological	287525	Phthalhydrazide Asreported	1445-69-8	250g	$552	2026-06-03	Buy

Product number	Packaging	Price	Buy
P38803	25g	$62.7	Buy
P0354	25g	$21	Buy
P0354	500g	$232	Buy
287525	100g	$393	Buy
287525	250g	$552	Buy

Phthalhydrazide Chemical Properties, Uses, Production

Chemical Properties

WHITE POWDER AND CHUNKS

Uses

Phthalic Hydrazide is a reagent in the synthesis in various pyrazolophthalazine derivatives.

Uses

Phthalhydrazide is a reagent used in the synthesis of various pyrazolophthalazine derivatives is and used in medicine double hydrazine phthalocyanine work intermediates.

Synthesis Reference(s)

Journal of Heterocyclic Chemistry, 5, p. 111, 1968 DOI: 10.1002/jhet.5570050120

Synthesis Reference(s)

Journal of the American Chemical Society, 84, p. 966, 1962 DOI: 10.1021/ja00865a018

Purification Methods

Recrystallise it twice from 0.1M KOH [Merenyi et al. J Am Chem Soc 108 7716 1986], EtOH or dimethylformamide and it sublimes >300o. [Beilstein 24 H 371, 24 II 194.]

Phthalhydrazide synthesis

Synthesis of Phthalhydrazide from Phthalic anhydride

Phthalhydrazide Preparation Products And Raw materials

Raw materials

1H-Isoindole-1,3(2H)-dione, 2-[(phenylmethyl)amino]- 1,2-Ethanediamine, N,N-bis(2-pyridinylmethyl)- 3-Amino-4H-pyrido[1,2-a]pyrimidin-4-one dihydrochloride 6-Nitrophthalide 2-(2-Methoxyethoxy)ethanamine

Benzylhydrazine

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Preparation Products

(DHQD)2PHAL 1-Chloro-4-methoxyphthalazine 4-Nitrophthalhydrazide 4-Aminophthalhydrazide (E)-4-chloro-1-hydrazono-1,2-dihydrophthalazine

Phthalhydrazide Suppliers

Global Suppliers ( 380)

Supplier	Tel	Email	Country	ProdList	Advantage
Hefei QiChang Biological Technology Co., Ltd.	17756579152	liuchun.0228@163.com	China	65	58
WEIFANG CYANOCHEM CO; LTD.	0571-85220831 13188860031	476521632@qq.com	China	297	58
Changzhou Ucheml Medicine Co., Ltd.	0519-86058959 13775231161	sales@uchemi.cn	China	304	50
Shanghai Boyle Chemical Co., Ltd.	021-50182298 021-50180596	sales@boylechem.com	China	2202	55
J & K SCIENTIFIC LTD.	18210857532 18210857532	jkinfo@jkchemical.com	China	96815	76
Meryer (Shanghai) Chemical Technology Co., Ltd.	4006356688 18621169109	market03@meryer.com	China	40202	62
INTATRADE GmbH	+49 3493/605464	sales@intatrade.de	Germany	3563	66
Alfa Aesar	400-6106006	saleschina@alfa-asia.com	China	30103	84
TAIYUAN RHF CO.,LTD.	+86 351 7031519	sales@RHFChem.com	China	2334	56
TCI (Shanghai) Development Co., Ltd.	021-67121386	Sales-CN@TCIchemicals.com	China	24512	81

Supplier	Advantage
Hefei QiChang Biological Technology Co., Ltd.	58
WEIFANG CYANOCHEM CO; LTD.	58
Changzhou Ucheml Medicine Co., Ltd.	50
Shanghai Boyle Chemical Co., Ltd.	55
J & K SCIENTIFIC LTD.	76
Meryer (Shanghai) Chemical Technology Co., Ltd.	62
INTATRADE GmbH	66
Alfa Aesar	84
TAIYUAN RHF CO.,LTD.	56
TCI (Shanghai) Development Co., Ltd.	81

View Latest Price from Phthalhydrazide manufacturers

Update time	Product	Price	Min. Order	Purity	Supply Ability	Manufacturer
2026-06-30	Phthalhydrazide 1445-69-8		1kg	98%	1000kg	Shaanxi Dideu New Materials Co. Ltd
2026-05-28	Phthalhydrazide 1445-69-8	$2.60	1KG	99%	5000kg	Hebei Chuanghai Biotechnology Co,.LTD
2026-03-20	Phthalhydrazide 1445-69-8		1KG	99%	20 mt	Hebei Chuanghai Biotechnology Co., Ltd

Phthalhydrazide
1445-69-8
$0.00
98%
Shaanxi Dideu New Materials Co. Ltd

Phthalhydrazide
1445-69-8
$2.60
99%
Hebei Chuanghai Biotechnology Co,.LTD

Phthalhydrazide
1445-69-8
99%
Hebei Chuanghai Biotechnology Co., Ltd

Phthalhydrazide Spectrum

Phthalhydrazide(1445-69-8)MS Phthalhydrazide(1445-69-8)¹HNMR Phthalhydrazide(1445-69-8)¹³CNMR Phthalhydrazide(1445-69-8)IR1 Phthalhydrazide(1445-69-8)IR2 Phthalhydrazide(1445-69-8)Raman Phthalhydrazide(1445-69-8)ESR

1445-69-8 (Phthalhydrazide) Related Search:

1,5-Diphenylcarbazide Benzoyl hydrazine Dibutyl phthalate 1,2-Benzenedimethanol Dimethyl phthalate

Phthalic anhydride Phthalimide Phthalamide Diphenylcarbazone butyl isobutyl phthalate

Phthalic acid o-Phthalaldehyde Phthalylsulfathiazole Phthalazine Phthaloyl amlodipine

Potassium phthalimide Diallyl phthalate Potassium hydrogen phthalate

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