Shanghai Nianxing Industrial Co., Ltd
China
Product Name: Palmitic acid
Price: Check
Purity: 98.0%
Stocking Period: 10 Day
Contact: Yang
Email: sales@echemcloud.com

Dayang Chem (Hangzhou) Co., Ltd.
China
Product Name: 1-Amino-2-naphthol-4-sulfonic acid
Price: $Inquiry/100g $Inquiry/1kg $Inquiry/100kg $Inquiry/1000kg
Purity: 98.0%
Stocking Period: Inquiry
Contact: Ms Wang
Email: enquiry@dycnchem.com

Henan Tianfu Chemical Co., Ltd.
China
Product Name: TIANFUCHEM--High purity 116-63-2 1-Amino-2-naphthol-4-sulfonic acid
Price: $Inquiry/1kg $Inquiry/25kg $Inquiry/1000kg $Inquiry/10ton
Purity: 99.0%
Stocking Period: Inquiry
Contact: Anson
Email: info@tianfuchem.com

116-63-2

116-63-2 structure

116-63-2 structure

Name: 1-Amino-2-naphthol-4-sulfonic Acid
Chemical Name: 4-amino-3-hydroxynaphthalene-1-sulfonic acid
CAS Number: 116-63-2
Molecular Formula: C₁₀H₉NO₄S
Molecular Weight: 239.248
Catalog: Organic raw materials Amino compound Oxy-containing amino compound
Create Date: 2018-02-15 08:00:00
Modify Date: 2026-07-01 14:42:55

Name	4-amino-3-hydroxynaphthalene-1-sulfonic acid
Synonyms	1-amino-2-naphthol-4-sulfonic acid test solution(ChP) 1-Naphthalenesulfonicacid,4-amino-3-hydroxy 1-Amino-2-Naphthol-4-SulfonicAcid 4-AMINO-3-HYDROXY-1-NAPHTHALENE-SULFONIC ACID 1-Amino-2-naphthol-4-sulfonic Acid > 2-HYDROXY-4-SULFO-1-NAPHTHYLAMINE 4-amino-3-hydroxynaphthalene-1-sulfonicaci 1,2,4-Acid 4-Amino-3-hydroxy-1-naphthalenesulfonic acid 4-AMINO-3-HYDROXY-1-NAPHTHALENESULFONIC ACID , FOR SPECTROPHOTOMETRIC DET. (OF SI) 2-Naphthol-4-sulfonic acid, 1-amino TIMTEC-BB SBB008870 1-Amino-2-naphthol-4-sulfonate Amino-2-Naphthol-4-SulfonicAcid 1-AMINO-2-HYDROXY-4-SULFONAPHTHALENE 1-Amino-2-naphthol-4 1-AMINO-2-NAPHTHOL-4-SULFONIC ACID, REAG 4-AMINO-3-HYDROXY-1-NAPHTHALENESULFONIC ACID A.C.S MFCD00004019 1-Amino-2-naphthol-4-sulphonic acid 1-amino-4-sulfo-2-naphthol LABOTEST-BB LT00454379 1-AMINO-2-NAPHTHOL-4-SULFONIC ACID, 1-AMINO-2-NAPHTHOL-4-SULFONIC ACID, 1-AMINO-2-NAPHTHOL-4-SULFONIC ACID 4-AMINO-3-HYDROXYNAPHTHALENE-1-SULFONIC ACID 1,2,4-acid TIANFUCHEM-High purity -2 1-Amino-2-naphthol-4-sulfonic acid 4-amino-3-hydroxy-1-Naphthalenesulfonic acid 1-amino-2-naphthol-4-sulfonic acid 4-Amino-3-hydroxynaphthalene-1-sulfonic acid 1-AMINO-2-HYDROXY-4-NAPHTHALENESULFONIC ACID 3-Hydroxynaphthionic acid 1-AMINO-2-NAPHTH-4-SULFONIC AC 1-Amino-2-naphehol-4-sulphonicacid 1-Amino-2-Naphthol-4-Sulphonic Acid (1,2,4-Acid) extrapure 4-AMINO-3-NAPHTHOL-1-SULFONIC ACID 4-AMINO-3-HYDROXY-1-NAPTHALENE SULFONIC ACID 4-amino-3-hydroxy-1-naphthalenesulfonicaci 1,2,4-AMINONAPHTHOLSULFONIC ACID 4-Amino-3-hydroxy-1-naphthalenesulfonic acid p.a 1-Amino-2-naphthol-4-sulfonic acid hemihydrate 1-Amino-2-naphthol-4-sulfonic acid, (Titration) 1-Amino-2-hydroxy-4-naphthalenesulfonic acid for determination of phosphate 4-AMINO-3-HYDROXY-1-NAPHTHALENESULFONIC ACID EINECS 204-147-3 1-Amino-2-Napthol-4-sulfonic Acid 1-Amino-2-naphthol-4-sulfonic 4-AMINO-3-HYDROXY-1-NAPHTHALENESULFONIC& 4-Amino-3-hydroxy-1-naphthalenesulfonic acid min 1-Amino-2-Naphthol-4-SulfonicAcid-(4-Amino-3Hydroxy-1-NapthaleneSulphonicAcid) 1-Amino-2-naphthol-4-sulfonic acid test solution 1-AMINO-2-NAPHTHOL-4-SULPHONIC ACID extrapure 4-Amino-3-hydroxy-1-naphthalenesulphonic acid 1-AMINO-2-NAPHTHOL-4-SULFONIC ACID 4-AMINO-3-HYDROXYNAPHTHALENE-1-SULPHONIC ACID 4-Amino-3-hydroxy-1-naphthalenesulfonic acid,1-Amino-2-naphthol-4-sulfonic acid

Density	1.6±0.1 g/cm3
Boiling Point	466ºC
Melting Point	295ºC
Molecular Formula	C₁₀H₉NO₄S
Molecular Weight	239.248
Exact Mass	239.025223
PSA	109.00000
LogP	-0.92
Index of Refraction	1.748
Stability	Stable. Incompatible with strong bases, acid chlorides, acid anhydrides, strong oxidizing agents.
Water Solubility	insoluble

CHEMICAL IDENTIFICATION

RTECS NUMBER :: QK1292000

CHEMICAL NAME :: 1-Naphthalenesulfonic acid, 4-amino-3-hydroxy-

CAS REGISTRY NUMBER :: 116-63-2

LAST UPDATED :: 199709

DATA ITEMS CITED :: 4

MOLECULAR FORMULA :: C10-H9-N-O4-S

MOLECULAR WEIGHT :: 239.26

Personal Protective Equipment	Eyeshields;Gloves;type N95 (US);type P1 (EN143) respirator filter
Hazard Codes	Xi:Irritant
Risk Phrases	R36/37/38
Safety Phrases	S26-S37/39
RIDADR	UN 2585
WGK Germany	3
RTECS	QK1292000
Packaging Group	III
Hazard Class	8.0
HS Code	29222100

Precursor 10
131-91-9 84-86-6 134-32-7 6639-33-4
872271-26-6 2834-92-6 135-19-3 573-89-7
6357-85-3 56541-64-1
DownStream 10
18398-37-3 233-70-5 887-76-3 2834-92-6
1203-39-0 27828-56-4 7341-79-9 84-23-1
6259-63-8 64403-55-0

HS Code	2922299090
Summary	2922299090. other amino-naphthols and other amino-phenols, other than those containing more than one kind of oxygen function, their ethers and esters; salts thereof. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:30.0%

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