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1-Amino-8-hydroxynaphthalene-3,6-disulphonic acid

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Origin: China

Cas No: 90-20-0

Specification: 99%min

Min order Quantity: 1 /kg

Supply Ability: 80 mt/month

Lead time: 7 days for OEM, 3 days for ready goods

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CAS No.: 90-20-0 Formula: C10H9NO7S2 Molecular Weight: 319.31100

Basic Info

Chemical Name	1-Amino-8-hydroxynaphthalene-3,6-disulphonic acid
Synonyms	1-amino-8-hydroxynaphtalene-3,6-disulfonic acid; 4-hydroxy-5-amino-2,7-naphthalenedisulfonic acid; 4-amino-5-hydroxynaphthalene-2,7-disulfonic acid; kyselinah; Sulfonphthol; kyselina1-amino-8-naftol-3,6-disulfonova; kyselina8-amino-1-naftol-3,6-disulfonova; 1-AMINO-8-NAPHTHOL-3,6-DISULFONIC ACID; H Acids; 1-Amino-8-naphthol-3,6-disulphonicacid; 1-Amino-8-hydroxy-3,6-disulfonaphthalene; 1-hydroxy-8-aminonaphthalene-3,6-disulfonic acid; 8-AMINO-1-NAPHTHOL-3,6-DISULFONIC ACID; 1-Naphthol-8-amino-3,6-disulfonicacid; 1-amino-8-hydroxynaphthalene-3,6-disulfonic acid; 2,7-Naphthalenedisulfonic acid, 4-amino-5-hydroxy-;
CAS No.	90-20-0
Molecular Formula	C10H9NO7S2
Molecular Weight	319.31100
PSA	171.75000
LogP	3.36380

Properties

Appearance & Physical State	White to gray-yellow powder
Density	1.88 g/cm3
Melting Point	>300ºC(lit.)

Safety Info

Safety Statements	S26; S36
HS Code	2922299090
WGK Germany	3
Risk Statements	R36/37/38
Hazard Codes	Xi

Synthesis Route

Koch acid→1-Amino-8-hydroxynaphthalene-3,6-disulphonic acid
4,5-diaminonaphthalene-2,7-disulfonic acid→1-Amino-8-hydroxynaphthalene-3,6-disulphonic acid
naphthalene-2,7-disulfonic acid→1-Amino-8-hydroxynaphthalene-3,6-disulphonic acid

Toxicity

Exposure Route	Type of Test	Species Observed	Dose/Duration	Toxic Effects
Administration into the eye	Standard Draize test	Rodent - rabbit	500 mg/24H	-

Precursor

Koch acid
Sulfuric acid
4,5-diaminonaphthalene-2,7-disulfonic acid
naphthalene-2,7-disulfonic acid

Downstream Product

5-amino-4-oxo-3-(phenylhydrazinylidene)naphthalene-2,7-disulfonic acid
2-Naphthylamine-1-Sulfonic Acid
8-Amino-2-(3-chloro-2-hydroxy-5-nitrophenylazo)-1-naphthol-3,6-disulfonic acid
4-anilino-5-hydroxynaphthalene-2,7-disulfonic acid

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