2-Amino-4,8-naphthalenedisulfonic acid
- CAS No.
- 131-27-1
- Chemical Name:
- 2-Amino-4,8-naphthalenedisulfonic acid
- Synonyms
- C ACID;acidiv;kyselinac;AMINO C ACID;CASSELLA ACID;JACS-131-27-1;2-Amino-4,8-naphthal;4,8-disulfo-2-naphthalamine;4,8-Disulfo-2-naphthylamine;2-Ethylamino-4,8-dinaphthalene
- CBNumber:
- CB5200922
- Molecular Formula:
- C10H9NO6S2
- Molecular Weight:
- 303.31
- MDL Number:
- MFCD00035722
- MOL File:
- 131-27-1.mol
- MSDS File:
- SDS
Boiling point | 205.8°C (rough estimate) |
---|---|
Density | 1.6329 (rough estimate) |
refractive index | 1.7330 (estimate) |
storage temp. | 2-8°C |
pka | -1.16±0.40(Predicted) |
CAS DataBase Reference | 131-27-1(CAS DataBase Reference) |
FDA UNII | X5M28DHP3K |
EPA Substance Registry System | 1,5-Naphthalenedisulfonic acid, 3-amino- (131-27-1) |
SAFETY
Risk and Safety Statements
Symbol(GHS) | GHS07 |
---|---|
Signal word | Warning |
Hazard statements | H302-H315-H319-H335 |
Precautionary statements | P261-P264-P270-P271-P280-P301+P312-P302+P352-P304+P340-P305+P351+P338-P330-P332+P313-P337+P313-P362-P403+P233-P405-P501 |
Risk Statements | 36/37/38 |
Safety Statements | 26-36/37/39 |
Toxicity | rat,LD50,oral,11400mg/kg (11400mg/kg),"Prehled Prumyslove Toxikologie; Organicke Latky," Marhold, J., Prague, Czechoslovakia, Avicenum, 1986Vol. -, Pg. 1058, 1986. |
2-Amino-4,8-naphthalenedisulfonic acid price More Price(19)
Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
---|---|---|---|---|---|---|---|
Biosynth Carbosynth | FA40997 | 2-Amino-4,8-naphthalenedisulfonic acid | 131-27-1 | 100g | $60 | 2021-12-16 | Buy |
Biosynth Carbosynth | FA40997 | 2-Amino-4,8-naphthalenedisulfonic acid | 131-27-1 | 250g | $100 | 2021-12-16 | Buy |
Biosynth Carbosynth | FA40997 | 2-Amino-4,8-naphthalenedisulfonic acid | 131-27-1 | 500g | $180 | 2021-12-16 | Buy |
Matrix Scientific | 094178 | 3-Aminonaphthalene-1,5-disulfonic acid 92+% | 131-27-1 | 1g | $189 | 2021-12-16 | Buy |
Biosynth Carbosynth | FA40997 | 2-Amino-4,8-naphthalenedisulfonic acid | 131-27-1 | 1kg | $240 | 2021-12-16 | Buy |
2-Amino-4,8-naphthalenedisulfonic acid Chemical Properties,Uses,Production
Chemical Properties
2-Aminonaphthalene-4,8-disulfonic acid [131-27-1]. (3-aminonaphthalene-1,5-disulfonic acid), Cassella acid, C acid, C10H9NO6S2, Mr 303.32, and its salts are readily soluble in water. Reduction with sodium amalgam desulfonates 2-Aminonaphthalene-4,8-disulfonic acid to give 2-aminonaphthalene-8-sulfonic acid, whereas boiling with dilute sulfuric acid results in desulfonation and hydrolysis to give 2- hydroxynaphthalene-4-sulfonic acid. Alkali fusion (KOH, 215℃) produces 2-amino-4-hydroxynaphthalene-8-sulfonic acid.
Uses
2-Amino-4,8-naphthalenedisulfonic Acid is used in green preparation method of direct blended blue D 3GL.
Uses
Cassella acid is an important diazo component for yellow direct and reactive dyes.
Production Methods
The iron(II) salt of 3-nitronaphthalene-1,5-disulfonic acid (nitro-Armstrong acid) is reduced with iron in dilute acid. A claimed improvement involves isolation of nitro-Armstrong acid from the nitration products of naphthalene-1,5-disulfonic acid as the crystalline magnesium salt prior to catalytic reduction to C acid.
2-Amino-4,8-naphthalenedisulfonic acid Preparation Products And Raw materials
Raw materials
Preparation Products
1of4
Supplier | Tel | Country | ProdList | Advantage | |
---|---|---|---|---|---|
Henan Bao Enluo International TradeCo.,LTD | +86-17331933971 +86-17331933971 | deasea125996@gmail.com | China | 2503 | 58 |
Shanghai Daken Advanced Materials Co.,Ltd | +86-371-66670886 | info@dakenam.com | China | 18628 | 58 |
Henan Tianfu Chemical Co.,Ltd. | +86-0371-55170693 +86-19937530512 | info@tianfuchem.com | China | 21666 | 55 |
career henan chemical co | +86-0371-86658258 +8613203830695 | sales@coreychem.com | China | 29888 | 58 |
Hubei Jusheng Technology Co.,Ltd. | 18871490254 | linda@hubeijusheng.com | CHINA | 28180 | 58 |
Hubei xin bonus chemical co. LTD | 86-13657291602 | linda@hubeijusheng.com | CHINA | 22968 | 58 |
Chongqing Chemdad Co., Ltd | +86-023-6139-8061 +86-86-13650506873 | sales@chemdad.com | China | 39916 | 58 |
Alchem Pharmtech,Inc. | 8485655694 | sales@alchempharmtech.com | United States | 63711 | 58 |
CONIER CHEM AND PHARMA LIMITED | +8618523575427 | sales@conier.com | China | 49392 | 58 |
SIMAGCHEM CORP | +86-13806087780 | sale@simagchem.com | China | 17367 | 58 |
View Lastest Price from 2-Amino-4,8-naphthalenedisulfonic acid manufacturers
Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
---|---|---|---|---|---|---|---|---|
2023-08-05 | 2-Amino-4,8-naphthalenedisulfonic acid
131-27-1
|
US $30.00 / kg | 1kg | 99% | 1000tons | Henan Bao Enluo International TradeCo.,LTD | ||
2022-05-12 | 2-Amino-4,8-naphthalenedisulfonic acid
131-27-1
|
US $0.00 / g | 10g | 99.0% | 10tons | Wuhan Godbullraw Chemical Co.,ltd | ||
2022-05-10 | 2-Amino-4,8-naphthalenedisulfonic acid
131-27-1
|
US $0.00 / KG | 0.01KG | 99% | 1 tons | Wuhan Godbullraw Chemical Co.,ltd |
- 2-Amino-4,8-naphthalenedisulfonic acid
131-27-1
- US $30.00 / kg
- 99%
- Henan Bao Enluo International TradeCo.,LTD
- 2-Amino-4,8-naphthalenedisulfonic acid
131-27-1
- US $0.00 / g
- 99.0%
- Wuhan Godbullraw Chemical Co.,ltd
- 2-Amino-4,8-naphthalenedisulfonic acid
131-27-1
- US $0.00 / KG
- 99%
- Wuhan Godbullraw Chemical Co.,ltd