CINNOLINE Chemical Properties

Melting point:

38°; mp 40-41° (Morley); mp 24-25°

Boiling point:

bp0.35 114°

Density 

1.1509 (rough estimate)

refractive index 

1.6231 (estimate)

storage temp. 

2-8°C

pka

2.37(at 20℃)

Safety Information

RIDADR 

2923

HazardClass 

8

PackingGroup 

III

CINNOLINE Usage And Synthesis

Definition

ChEBI: An azaarene that is the 1,2-diaza analogue of naphthalene. The parent of the class of cinnolines.

Purification Methods

It is distilled at high vacuum, then recrystallised from pet ether. Keep it under N2 in sealed tubes in the dark at 0o. The hydrochloride [5949-24-6] M 166.6 crystallises from EtOH/Et2O and has m 156-158o (yellow monohydrate), and dehydrates on sublimation at 110-115o/3mm. The picrate has m 196-196.5o. [Beilstein 23 H 173, 23 III.IV 1217.]

CINNOLINE(253-66-7)Related Product Information

• benzo(c)cinnoline,5-oxid
• 3-cinnolinecarboxaldehyde
• CINNOLINE
• 3-METHYLCINNOLIN-5-AMINE
• BENZO[C]CINNOLINE
• 3)dioxolo(4,5-g)cinnoline-3-carboxylicacid,1,4-dihydro-1-ethyl-4-oxo-
• 4-CHLORO-CINNOLINE
• 8-PHENYL[1,2,5]OXADIAZOLO[3,4-F]CINNOLINE
• [1,2,5]OXADIAZOLO[3,4-F]CINNOLINE
• 4-HYDROXY-CINNOLINE
• 8-METHYL[1,2,5]OXADIAZOLO[3,4-F]CINNOLINE
• CINNOLINE-4-CARBOXYLIC ACID
• ETHIDIUM HOMODIMER
• 9-METHYL[1,2,5]OXADIAZOLO[3,4-F]CINNOLINE
• CINNOLINE HYDROCHLORIDE 98,cinnoline hydrochloride
• 3-PHENYLCINNOLINE-4-CARBOXYLIC ACID
• 8,9-DIHYDRO-1,2,5-OXADIAZOLO[3,4-F]CINNOLINE-7-OXIDE
• 1-ethyl-1,4-dihydro-4-oxo[1,3]dioxolo[4,5-g]cinnoline-3-carbonitrile