2-Amino-3,6,8-naphthalenetrisulfonic acid
- CAS No.
- 118-03-6
- Chemical Name:
- 2-Amino-3,6,8-naphthalenetrisulfonic acid
- Synonyms
- K-ACID;AMINO K ACID;2-R amino acid;kyselinakochova;Amino K Acid(K Acid);2-NAPHTHYLAMINE-3,6,8-TRISULFONIC ACID;6-naphthalenetrisulfonicacid,7-amino-3;7-Amino-1,3,6-naphthalenesulfonic Acid;2-NAPTHYLAMINE-3,6,8 TRI SULPHONIC ACID;kyselina2-naftylamin-3,6,8-trisulfonova
- CBNumber:
- CB1148862
- Molecular Formula:
- C10H9NO9S3
- Molecular Weight:
- 383.37
- MDL Number:
- MFCD00035721
- MOL File:
- 118-03-6.mol
- MSDS File:
- SDS
| Boiling point | 702.53℃[at 101 325 Pa] |
|---|---|
| Density | 1.7995 (rough estimate) |
| refractive index | 1.6800 (estimate) |
| storage temp. | 2-8°C |
| pka | -1.27±0.40(Predicted) |
| Water Solubility | 1000g/L at 25℃ |
| InChI | InChI=1S/C10H9NO9S3/c11-8-4-7-5(2-10(8)23(18,19)20)1-6(21(12,13)14)3-9(7)22(15,16)17/h1-4H,11H2,(H,12,13,14)(H,15,16,17)(H,18,19,20) |
| InChIKey | GFPQSWFFPRQEHH-UHFFFAOYSA-N |
| SMILES | C1(S(O)(=O)=O)=C2C(C=C(S(O)(=O)=O)C(N)=C2)=CC(S(O)(=O)=O)=C1 |
| LogP | -11.96 |
| CAS DataBase Reference | 118-03-6(CAS DataBase Reference) |
| EPA Substance Registry System | 1,3,6-Naphthalenetrisulfonic acid, 7-amino- (118-03-6) |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |  GHS07 |
|---|---|
| Signal word | Warning |
| Hazard statements | H302-H315-H319-H335 |
| Precautionary statements | P261-P305+P351+P338 |
| TSCA | TSCA listed |
| Toxicity | rat,LD50,oral,13gm/kg (13000mg/kg),"Prehled Prumyslove Toxikologie; Organicke Latky," Marhold, J., Prague, Czechoslovakia, Avicenum, 1986Vol. -, Pg. 1058, 1986. |
| REACH Registrations | Active |
2-Amino-3,6,8-naphthalenetrisulfonic acid price More Price(18)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Biosynth | FN41107 | 2-Naphthylamine-3,6,8-trisulfonic acid | 118-03-6 | 0.5kg | $383.5 | 2026-06-04 | Buy |
| Biosynth | FN41107 | 2-Naphthylamine-3,6,8-trisulfonic acid | 118-03-6 | 1kg | $590 | 2026-06-04 | Buy |
| Biosynth | FN41107 | 2-Naphthylamine-3,6,8-trisulfonic acid | 118-03-6 | 2kg | $826 | 2026-06-04 | Buy |
| Biosynth | FN41107 | 2-Naphthylamine-3,6,8-trisulfonic acid | 118-03-6 | 5kg | $1416 | 2026-06-04 | Buy |
| Crysdot | CD44000715 | 7-Aminonaphthalene-1,3,6-trisulfonic acid 95+% | 118-03-6 | 5g | $200 | 2026-05-27 | Buy |
2-Amino-3,6,8-naphthalenetrisulfonic acid Chemical Properties, Uses, Production
Chemical Properties
2-Aminonaphthalene-3,6,8-trisulfonic acid [118-03-6]. (7-aminonaphthalene-1,3,6- trisulfonic acid), C10H9NO9S3, Mr 383.36, and its disodium salts are soluble in water, but the dipotassium salt is much less soluble. Reduction with zinc dust and alkali results in 2-aminonaphthalene-3,6-disulfonic acid, and caustic fusion at 240℃ gives 2-amino-8-hydroxynaphthalene-3,6-disulfonic acid.
Uses
2-Amino-3,6,8-naphthalenetrisulfonic acid is used in the manufacture of azo dyes and 2R acid.
Production Methods
2-Aminonaphthalene-6,8-disulfonic acid is sulfonated with 65 % oleum at 125℃ for 12 h in the presence of anhydrous sodium sulfate. After quenching and liming out, the hot solution of calcium salt is basified with sodium carbonate and the resulting solution of the trisodium salt is used directly for caustic fusion to give 2-amino-8-hydroxynaphthalene-3,6-disulfonic acid.
Flammability and Explosibility
Not classified
References
[1] Patent: CN106866467, 2017, A. Location in patent: Paragraph 0025; 0029; 0033; 0037
2-Amino-3,6,8-naphthalenetrisulfonic acid Preparation Products And Raw materials
Raw materials
Preparation Products
1of2
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| Wuhan Yuqing Jiaheng Pharmaceutical Co., Ltd. | 027-83850122 13343472658 | 918571372@qq.com | China | 1000 | 58 |
| Beijing Ouhe Technology Co., Ltd | 13552068683 13522913783 | 2355560935@qq.com | China | 11777 | 60 |
| Shanghai Hanhong Scientific Co.,Ltd. | 021-54306202 13764082696 | info@hanhongsci.com | China | 42917 | 64 |
| XiaoGan ShenYuan ChemPharm co,ltd | 15527621225; 15527621225 | 1791901229@qq.com | China | 6742 | 52 |
| Syntechem Co.,Ltd | info@syntechem.com | China | 12973 | 57 | |
| Quzhou Juhua Friendship Co., Ltd | 0570-3066667 | China | 3922 | 58 | |
| Chengdu HuaXia Chemical Reagent Co. Ltd | 400-1166-196 13458535857 | cdhxsj@163.com | China | 13323 | 58 |
| Finetech Industry Limited | 027-87465837 19945049750 | sales@finetechnology-ind.com | China | 9331 | 58 |
| Shanghai YuLue Chemical Co., Ltd. | 021-60345187 13671753212 | lzz841106@aliyun.com | China | 10244 | 55 |
| Quzhou Rundong Chemical (Technology) Co. | 0570-8789886 18892685668 | info@rundongchemical.com | China | 4045 | 60 |
View Latest Price from 2-Amino-3,6,8-naphthalenetrisulfonic acid manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
 |
2026-09-15 | 2-Amino-3,6,8-naphthalenetrisulfonic acid
118-03-6
|
1KG | 98%min | 30tons/month | WUHAN FORTUNA CHEMICAL CO., LTD | ||
 |
2026-09-07 | 2-Amino-3,6,8-naphthalenetrisulfonic acid
118-03-6
|
1kg | 99%min | 20tons | HANGZHOU HAILAN CHEMICAL CO.,LTD. | ||
 |
2026-08-20 | 2-Amino-3,6,8-naphthalenetrisulfonic acid
118-03-6
|
$1.10 | 1g | 99.00% | 100 Tons Min | Dideu Industries Group Limited |
-
- 2-Amino-3,6,8-naphthalenetrisulfonic acid
118-03-6
- $0.00
- 98%min
- WUHAN FORTUNA CHEMICAL CO., LTD
-
- 2-Amino-3,6,8-naphthalenetrisulfonic acid
118-03-6
- $0.00
- 99%min
- HANGZHOU HAILAN CHEMICAL CO.,LTD.
-
- 2-Amino-3,6,8-naphthalenetrisulfonic acid
118-03-6
- $1.10
- 99.00%
- Dideu Industries Group Limited
118-03-6 (2-Amino-3,6,8-naphthalenetrisulfonic acid) Related Search:
1of4
