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1-Amino-2-naphthol-4-sulfonic acid

1-Amino-2-naphthol-4-sulfonic acid
1-Amino-2-naphthol-4-sulfonic acid structure
CAS No.
116-63-2
Chemical Name:
1-Amino-2-naphthol-4-sulfonic acid
Synonyms
1,2,4-acid;TIMTEC-BB SBB008870;1-Amino-2-naphthol-4;LABOTEST-BB LT00454379;3-Hydroxynaphthionic acid;1-amino-4-sulfo-2-naphthol;1-Amino-2-naphthol-4-sulfonic;1-AMINO-2-NAPHTH-4-SULFONIC AC;Amino-2-Naphthol-4-SulfonicAcid;1-Amino-2-naphthol-4-sulfonate.
CBNumber:
CB5345948
Molecular Formula:
C10H9NO4S
Formula Weight:
239.25
MOL File:
116-63-2.mol

1-Amino-2-naphthol-4-sulfonic acid Properties

Melting point:
290 °C (dec.)(lit.)
Density 
1.4338 (rough estimate)
refractive index 
1.6500 (estimate)
storage temp. 
Store below +30°C.
form 
Powder
color 
White to light pink
Water Solubility 
insoluble
Merck 
14,454
BRN 
2697469
Stability:
Stable. Incompatible with strong bases, acid chlorides, acid anhydrides, strong oxidizing agents.
InChIKey
RXCMFQDTWCCLBL-UHFFFAOYSA-N
CAS DataBase Reference
116-63-2(CAS DataBase Reference)
NIST Chemistry Reference
1-Naphthalenesulfonic acid,4-amino-3-hydroxy-(116-63-2)
EPA Substance Registry System
1-Naphthalenesulfonic acid, 4-amino-3-hydroxy-(116-63-2)
SAFETY
  • Risk and Safety Statements
  • Hazard and Precautionary Statements (GHS)
Hazard Codes  Xi
Risk Statements  36/37/38
Safety Statements  37/39-26
RIDADR  3265
WGK Germany  3
RTECS  QK1292000
TSCA  Yes
HazardClass  IRRITANT
PackingGroup  III
HS Code  29222100
Symbol(GHS):
Signal word: Warning
Hazard statements:
Code Hazard statements Hazard class Category Signal word Pictogram P-Codes
H315 Causes skin irritation Skin corrosion/irritation Category 2 Warning P264, P280, P302+P352, P321,P332+P313, P362
H319 Causes serious eye irritation Serious eye damage/eye irritation Category 2A Warning P264, P280, P305+P351+P338,P337+P313P
H335 May cause respiratory irritation Specific target organ toxicity, single exposure;Respiratory tract irritation Category 3 Warning
Precautionary statements:
P261 Avoid breathing dust/fume/gas/mist/vapours/spray.
P264 Wash hands thoroughly after handling.
P264 Wash skin thouroughly after handling.
P280 Wear protective gloves/protective clothing/eye protection/face protection.
P304+P340 IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing.
P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
P405 Store locked up.

1-Amino-2-naphthol-4-sulfonic acid price More Price(9)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 398969 4-Amino-3-hydroxy-1-naphthalenesulfonic acid ACS reagent, ≥90% 116-63-2 25g $71 2018-11-20 Buy
Sigma-Aldrich 1.00099 1-Amino-2-hydroxy-4-naphthalenesulfonic acid for determination of phosphate. CAS 116-63-2, molar mass 239.24 g/mol., for determination of phosphate 116-63-2 1000990100 $204 2018-11-23 Buy
TCI Chemical A0367 1-Amino-2-naphthol-4-sulfonic Acid >97.0%(T) 116-63-2 25g $28 2018-11-22 Buy
Alfa Aesar 036290 4-Amino-3-hydroxy-1-naphthalenesulfonic acid, ACS, 90+% 116-63-2 25g $49.3 2018-11-16 Buy
Alfa Aesar 036290 4-Amino-3-hydroxy-1-naphthalenesulfonic acid, ACS, 90+% 116-63-2 5g $14.4 2018-11-16 Buy

1-Amino-2-naphthol-4-sulfonic acid Chemical Properties,Uses,Production

Chemical Properties

solid

Uses

1-Amino-2-naphthol-4-sulfonic acid can be used in determination of phosphate.

Purification Methods

Purify it by warming 15g of the acid, 150g of NaHSO3 and 5g of Na2SO3(anhydrous) with 1L of water to ca 90o, shaking until most of the solid had dissolved, then filtering hot. The precipitate obtained by adding 10mL of conc HCl to the cooled filtrate is collected, washed with 95% EtOH until the washings are colourless, and is dried under vacuum over CaCl2. It is stored in a dark-coloured bottle, in the cold [Chanley et al. J Am Chem Soc 74 4347 1952]. [Beilstein 14 IV 2825.]

1-Amino-2-naphthol-4-sulfonic acid Preparation Products And Raw materials

Raw materials

Preparation Products


1-Amino-2-naphthol-4-sulfonic acid Suppliers

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1-Amino-2-naphthol-4-sulfonic acid Spectrum


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