2,3-Dihydro-1,4-phthalazinedione

Basic Information

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CAS Number

1445-69-8

Molecular Formula

C8H6N2O2

Molecular Weight

162.15 g/mol

Chemical Classification

Basic Chemical Raw Materials Organic Chemicals Carboxylic Acids

Basic Chemical Raw Materials Organic Chemicals Heterocyclic Compounds

Pharmaceutical Chemicals Pharmaceutical Intermediates Heterocyclic Intermediates

Fine Chemicals Dyes and Pigments Organic Dyes

Basic Physical Properties

Melting Point

>300 °C

Boiling Point

523.5°C at 760 mmHg

Flash Point

270.4ºC

Solubility

Soluble in acetone and acetic acid.

Refractive Index

1.5770 (estimate)

SMILES

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C1=CC=C2C(=C1)C(=O)NNC2=O

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

LogP

0.21639999999999937

Topological Polar Surface Area

65.72 Å²

Hydrogen Bond Donor/Acceptor

2 / 4

Complexity

203

Safety Information

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Hazard Statement

H315 Causes skin irritation
Skin corrosion/irritation

H319 Causes serious eye irritation
Serious eye damage/eye irritation

H335 May cause respiratory irritation
Specific target organ toxicity, single exposure; Respiratory tract irritation

Synonyms & References

English

FT-0633546
AKOS000120770
Phthalic Hydrazide
NSC651
Phtalylhydrazine
EN300-16237
InChI=1/C8H6N2O2/c11-7-5-3-1-2-4-6(5)8(12)10-9-7/h1-4H,(H,9,11)(H,10,12
2,3-Dihydrophthalazine-1,4-dione
2,4-PHTHALAZINEDIONE
HMS561J11
1445-69-8
Oprea1_494222
SR-01000633312-1
EU-0066961
NS00044850
phthalazine-1,4-diol
NSC201511
Phthaloylhydrazine
AH-034/32850062
SR-01000390724-1
1,4-Dioxo-1,2,3,4-tetrahydrophthalazine
SR-01000390724
SY029501
F0451-0418
CCG-43389
2,3-Dihydro-1,4-phthalazinedione #
hydroxyphthalazinone
Phthalazine-1,4(2H,3H)-dione
DTXSID90871842
Q-201576
1,4-di-hydroxyphthalazine

MDL Number

MFCD00006888

Customs Code

2933990090

FAQ

What is 2,3-Dihydro-1,4-phthalazinedione (CAS: 1445-69-8)?

2,3-Dihydro-1,4-phthalazinedione (CAS: 1445-69-8), also known as 1,4-Phthalazinedione, is a white crystalline compound. It is used primarily in the synthesis of dyes, pharmaceuticals, and as a chemical intermediate. Its chemical formula is C6H4(N2O)2.

What are the main uses of 2,3-Dihydro-1,4-phthalazinedione (CAS: 1445-69-8)?

2,3-Dihydro-1,4-phthalazinedione (CAS: 1445-69-8) is mainly used in the production of dyes and pigments, as a pharmaceutical intermediate, and in the synthesis of other chemicals. It is also used in the formulation of some agrochemicals and as a reagent in organic synthesis.

Is 2,3-Dihydro-1,4-phthalazinedione (CAS: 1445-69-8) safe?

2,3-Dihydro-1,4-phthalazinedione (CAS: 1445-69-8) is generally considered safe for industrial use, but proper handling is essential. It is slightly toxic by ingestion and inhalation. Workers should wear appropriate personal protective equipment, including gloves and a respirator. Storage should be in a cool, well-ventilated area, away from incompatible materials such as strong oxidizers.

How should 2,3-Dihydro-1,4-phthalazinedione (CAS: 1445-69-8) be stored?

2,3-Dihydro-1,4-phthalazinedione (CAS: 1445-69-8) should be stored in a cool, dry, and well-ventilated area away from direct sunlight. Containers should be tightly sealed and stored at temperatures below 25°C. Keep away from heat, sparks, and flame. Store in a location that is accessible only to authorized personnel and label containers clearly. Avoid contact with water and incompatible materials such as strong oxidizers.