amino-R acid
- CAS NO.:92-28-4
- Empirical Formula: C10H9NO6S2
- Molecular Weight: 303.31
- MDL number: MFCD00065332
- EINECS: 202-143-6
- SAFETY DATA SHEET (SDS)
- Update Date: 2023-11-06 11:23:10
What is amino-R acid?
The Uses of amino-R acid
Manufacture of dyes.
The Uses of amino-R acid
Amino R acid is used mainly as an intermediate for conversion to 2-amino-3-hydroxynaphthalene-6-sulfonic acid by caustic fusion at 250℃.
Production Methods
The sodium salt of 2-hydroxynaphthalene-3,6-disulfonic acid is aminated by heating with ammonia and ammonium bisulfite for 24 h at 160℃. The charge is added to excess lime and heated to remove excess ammonia, and calcium sulfite is filtered off. The productis precipitated by acidification ofthe filtrate and purified by redissolving the paste in alkali and reprecipitating with acid. The yield is 90 %.
Properties of amino-R acid
Density | 1.769±0.06 g/cm3(Predicted) |
pka | -0.93±0.40(Predicted) |
EPA Substance Registry System | 2,7-Naphthalenedisulfonic acid, 3-amino- (92-28-4) |
Safety information for amino-R acid
Computed Descriptors for amino-R acid
New Products
ALUMINIUM IODIDE 100 GM BUFFER CAPSULE PH 7.0 - 10 CAP BUFFER SOLUTION PH 9.5 (BORATE) EZEE BLUE GEL STAINER BORAX CARMINE (GRENACHERS ALCOHOLIC) POTASSIUM IODATE - IODIDE SOLN 0.1 N Dabigatran Acyl-O3-D-Glucuronide Trifluoroacetic Acid Salt Isofolic Acid Dabigatran 2-O-acylglucuronide metabolite Dabigatran Acyl-?-D- glucuronide Trifluroacetic Acid Erythromycin EP Impurity A Desloratidine Related Compound ARelated products of tetrahydrofuran
REACTIVE RED 4
Direct Blue 14
NITRO RED
SPADNS
Acid Black 1
Mordant Blue 13
NITROSULFONAZO III, INDICATOR GRADE
SULFONAZO III, TITRATION INDICATOR FOR S O4
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