3-Hydroxy-2-naphthohydrazide , 98% , 5341-58-2

Synonym(s):
3-Hydroxy-2-naphthydrazide

CAS NO.：5341-58-2

Empirical Formula: C11H10N2O2

Molecular Weight: 202.21

MDL number: MFCD00004097

EINECS: 226-282-7

PRODUCT Properties

• Melting point: 205-208 °C (lit.) 205-208 °C
• Boiling point: 340.32°C (rough estimate)
• Density: 1.352
• refractive index: 1.5300 (estimate)
• pka: 8.86±0.40(Predicted)
• form: Powder
• color: Beige
• BRN: 395153

Description and Uses

3-Hydroxy-2-naphthoic hydrazide may be used to synthesize the following 2-(alkyl/arylamino)-5-(3-hydroxy-2-naphthyl)-1,3,4-thiadiazoles:

• 2-ethylamino-5-(3-hydroxy-2-naphthyl)-1,3,4-thiadiazole
• 2-phenethylamino-5-(3-hydroxy-2-naphthyl)-1,3,4-thiadiazole
• 2-phenylamino-5-(3-hydroxy-2-naphthyl)-1,3,4-thiadiazole
• 2-(p-bromophenylamino)-5-(3-hydroxy-2-naphthyl)-1,3,4-thiadiazole
• 2-(p-chlorophenylamino)-5-(3-hydroxy-2-naphthyl)-1,3,4-thiadiazole
• 2-(p-fluorophenylamino)-5-(3-hydroxy-2-naphthyl)-1,3,4-thiadiazole
• 2-(m-fluorophenylamino)-5-(3-hydroxy-2-naphthyl)-1,3,4-thiadiazole
• 2-(p-methoxyphenylamino)-5-(3-hydroxy-2-naphthyl)-1,3,4-thiadiazole
• 2-(p-methylphenylamino)-5-(3-hydroxy-2-naphthyl)-1,3,4-thiadiazole
• 2-(m-trifluoromethylphenylamino)-5-(3-hydroxy-2-naphthyl)-1,3,4-thiadiazole

It may also be employed for the synthesis of 3-hydroxy-2-naphthaldehyde.

Safety

• Symbol(GHS): GHS07
• Signal word: Warning
• Hazard statements: H315-H319-H335
• Precautionary statements: P261-P264-P271-P280-P302+P352-P305+P351+P338
• Hazard Codes: Xi,C
• Risk Statements: 36/37/38
• Safety Statements: 26-36
• WGK Germany: 3
• F: 8-9-23
• TSCA: Yes
• HazardClass: IRRITANT
• HS Code: 29280090