1-Methylisatin , >97.0%(GC) , 2058-74-4

Synonym(s):
N-Methylindoline-2,3-dione;NSC 42449

CAS NO.：2058-74-4

Empirical Formula: C9H7NO2

Molecular Weight: 161.16

MDL number: MFCD00005812

EINECS: 218-164-9

PRODUCT Properties

• Melting point: 130-133 °C (lit.)
• Boiling point: 287.44°C (rough estimate)
• Density: 1.314
• refractive index: 1.5050 (estimate)
• storage temp.: Keep in dark place,Inert atmosphere,Room temperature
• pka: -2.41±0.20(Predicted)
• form: Crystalline Powder
• color: Orange to brownish
• Water Solubility: Insoluble in water.
• λmax: 427nm(CH2Cl2)(lit.)
• BRN: 128280
• CAS DataBase Reference: 2058-74-4(CAS DataBase Reference)

Description and Uses

• Reactant for stereoselective preparation of spirobicyclic and bis-spirotricyclic pyrazolidinones
• Reactant for regioselective preparation of spirocyclic oxindole-butenolides
• Reactant for synthesis of spiro-oxindoles
• Reactant for preparation of unsymmetrical oxindoles
• Reactant for stereoselective preparation of hydroxyloxindoles via Morita-Baylis-Hillman reaction
• Reactant for preparation of pyridinecarboxylic acid [(oxo)indolylidene)hydrazide derivatives (Schiff base hydrazides) as antibacterial agents

Safety

• Symbol(GHS): GHS05,GHS06
• Signal word: Danger
• Hazard statements: H301-H315-H318-H335
• Precautionary statements: P280-P301+P310+P330-P302+P352-P305+P351+P338+P310
• Hazard Codes: T
• Risk Statements: 25-37/38-41
• Safety Statements: 26-39-45
• RIDADR: UN 2811 6.1/PG 3
• WGK Germany: 3
• RTECS: NL7939000
• HazardClass: IRRITANT
• HS Code: 29337900
• Toxicity: mouse,LD50,intraperitoneal,685mg/kg (685mg/kg),LUNGS, THORAX, OR RESPIRATION: RESPIRATORY STIMULATION,Pharmaceutical Chemistry Journal Vol. 15, Pg. 858, 1981.