6-AMIDINO-2-NAPHTHOLMETHANESULFONATE
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6-AMIDINO-2-NAPHTHOLMETHANESULFONATE
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CAS No:
82957-06-0
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Formula:
C12H14N2O4S
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Chemical Name:
6-AMIDINO-2-NAPHTHOLMETHANESULFONATE
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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)
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CAS No:
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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6-AMIDINO-2-NAPHTHOLMETHANESULFONATE
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