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6-AMIDINO-2-NAPHTHOLMETHANESULFONATE

6-AMIDINO-2-NAPHTHOLMETHANESULFONATE structure

6-AMIDINO-2-NAPHTHOLMETHANESULFONATE 

structure
  • CAS No:

    82957-06-0

  • Formula:

    C12H14N2O4S

  • Chemical Name:

    6-AMIDINO-2-NAPHTHOLMETHANESULFONATE

  • Synonyms:

    Amidinonaphtolmethanesulfonate;6-aMidino-2-naphthol Methansulfonate;6-Amidino-2-naphtol methanesulfonate;6-AMIDINO-2-NAPHTHOL METHANESULFONATE;6-AMIDINO-2-NAPHTHOL METHANESULFONIC ACID;6-Amindino-2-naphtholmethanesulfonic acid;6-hydroxy-2-naphthiMidaMide Methanesulfonate;6-hydroxynaphthalene-2-carboxamidine mesylate;6-Hydroxy-2-naphthiMidaMide Methanesulfonate salt;6-Amidino-2-naphthol methanesulfonic acid (Nafamostat)

  • Categories:

    Pharmaceutical Intermediates  >  Bulk Drug Intermediates

6-AMIDINO-2-NAPHTHOLMETHANESULFONATE Basic Attributes

282.32

282.067413

1806241-263-5

2925290090

Characteristics

132

3.21430

0.876 g/mL at 25 °C(lit.)

−100 °C(lit.)

142-149 °C(lit.)

75 °F

n20/D 1.402(lit.)

4.5 (vs air)

Safety Information

III

3

UN 1104 3/PG 3

3

R10:Flammable. R66:Repeated exposure may cause skin dryness or cracking.

S23-S25-S24/25

AJ1925000

Xi

P264, P270, P280, P301+P312, P302+P352, P305+P351+P338, P321, P330, P332+P313, P337+P313, P362, P501

H302

6-AMIDINO-2-NAPHTHOLMETHANESULFONATE Use and Manufacturing

Take 800 ml of absolute ethanol in three bottles, The mixture was cooled to 0-5 ° C with stirring and 430 ml of acetyl chloride was added dropwise.Dropping completed, at 0 ~ 5 for a period of time, put 6-cyano-2-naphthol 85 g, 10 ° C for 10 hours, methyl tert-butyl ether was added and stirred for 1 hour to filter, The filter cake was washed with methyl tert-butyl ether, dried and mixed directly with ethanol, heated to 50 , Dry ammonia was bubbled for 3 hours and evaporated to dryness under reduced pressure to give a yellow solid.The mixture was stirred with saturated sodium bicarbonate solution for a period of time, filtered, washed with water until neutral.Wet products suspended in methanol, dropping a certain amount of methanesulfonic acid solution, Methyl tert-butyl ether was added to precipitate a solid, which was filtered, washed with methyl tert-butyl ether, Recrystallization from ethanol gave 75 g of a yellow solid, The temperature of 227 ° C ~ 230 ° C, Yield 53percent.

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