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-8-naphthol-4,6-disulfonic acid
Price: $Inquiry/100g $Inquiry/1kg $Inquiry/100kg $Inquiry/1000kg
Purity: 98.0%
Stocking Period: Inquiry
Contact: Ms Wang
Email: enquiry@dycnchem.com

130-23-4

130-23-4 structure

130-23-4 structure

Name: K Acid
Chemical Name: 1-Amino-8-naphthol-4,6-disulfonic acid
CAS Number: 130-23-4
Molecular Formula: C₁₀H₉NO₇S₂
Molecular Weight: 319.311
Catalog: Organic raw materials Amino compound Sulfonic acid amino compound
Create Date: 2019-01-02 20:06:08
Modify Date: 2026-07-11 10:01:12

Name	1-Amino-8-naphthol-4,6-disulfonic acid
Synonyms	KACID(1-AMINO-8NAPHTHO-4,6-DISULFONICACID) 8-amino-1-hydroxynaphthalene-3,5-disulphonic acid 1-amino-8-hydroxy-naphthalene-4,6-disulphonic acid 4-Amino-5-hydroxy-1,7-naphthalenedisulfonic acid 1-hydroxy-8-aminonaphthalene-3,5-disulphonic acid 1-AMINO-8-NAPHTHOL-4,6-DISULFONIC ACID 5-hydroxy-4-aminonaphthalene-1,7-disulphonic acid 4-amino-5-hydroxy-naphthalene-1,7-disulphonic acid 4-Amino-5-naphthol-1,7-disulfonic acid EINECS 204-982-3 4-azanyl-5-hydroxy-naphthalene-1,7-disulfonic acid EUROPEAN K-ACID Euopean K Acid N,N-methylenebis N'-1-(hydroxymethyl)-2,5-dioxo-4-imidazolidinyl N,N-methylenebis N'-1-(hydroxymethyl)-2,5-dioxo-4-imidazolidinyl urea ISO 9001：2015 REACH 4-Amino-5-hydroxynaphthalene-1,7-disulfonic acid 1-Amino-8-naphthol-4,6-disulfonicaci 1 AMINO 8 HYDROXY 4:6 DISULFONIC ACID K ACID MFCD00035711 4-amino-5-hydroxynaphthalene-1,7-disulfonic acid 1-Amino-8-Naphthol-4￡6-disulfonic acid/European K Acid 1-amino-8-naphtho-4,6-Disulfonic acid 1,7-Naphthalenedisulfonic acid, 4-amino-5-hydroxy 4-amino-5-hydroxynaphthalene-1,7-disulphonic acid 8-AMINO-1-NAPHTHOL-3,5-DISULFONIC ACID

Density	1.9±0.1 g/cm3
Molecular Formula	C₁₀H₉NO₇S₂
Molecular Weight	319.311
Exact Mass	318.982056
PSA	171.75000
LogP	-2.91
Index of Refraction	1.764

Hazard Codes	Xi,T
Risk Phrases	R41:Risk of serious damage to eyes.
Safety Phrases	S26-S39
RIDADR	2811
WGK Germany	3
HS Code	2922299090

90-20-0 structure

90-20-0

~%

130-23-4 structure

130-23-4

Literature: US4242258 A1, ;

17894-99-4 structure

17894-99-4

~%

130-23-4 structure

130-23-4

Literature: DE80741 ; Fortschr. Teerfarbenfabr. Verw. Industriezweige, vol. 4, p. 564

Precursor 2
90-20-0 17894-99-4
DownStream 1
6361-49-5

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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