K Acid

Names

[ CAS No. ]:
130-23-4

[ Name ]:
K Acid

[Synonym ]:
1,7-Naphthalenedisulfonic acid, 4-amino-5-hydroxy-
8-amino-1-hydroxynaphthalene-3,5-disulphonic acid
1-amino-8-hydroxy-naphthalene-4,6-disulphonic acid
4-Amino-5-hydroxynaphthalene-1,7-disulfonic acid
4-Amino-5-hydroxy-1,7-naphthalenedisulfonic acid
1-hydroxy-8-aminonaphthalene-3,5-disulphonic acid
1 AMINO 8 HYDROXY 4:6 DISULFONIC ACID
5-hydroxy-4-aminonaphthalene-1,7-disulphonic acid
4-amino-5-hydroxy-naphthalene-1,7-disulphonic acid
MFCD00035711
K Acid
4-Amino-5-naphthol-1,7-disulfonic acid
EINECS 204-982-3
1-amino-8-naphtho-4,6-Disulfonic acid
EUROPEAN K-ACID
8-AMINO-1-NAPHTHOL-3,5-DISULFONIC ACID

Chemical & Physical Properties

[ 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

Safety Information

[ 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

Synthetic Route

Click to get detail synthetic route

Precursor & DownStream

Precursor

DownStream

Customs

[ 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%