4,4'-Diamino-2,2'-stilbenedisulfonic acid

Product Name: 4,4'-Diamino-2,2'-stilbenedisulfonic acid
CAS No.: 81-11-8
Chemical Name: 4,4'-Diamino-2,2'-stilbenedisulfonic acid
Synonyms: DSD ACID;DAS;DASDA;AMSONIC ACID;DASD;benedisuL;nci-c60162;tinopalbhs;AMSOMICACID;flavonicacid
CBNumber: CB0496267
Molecular Formula: C14H14N2O6S2
Formula Weight: 370.4
MOL File: 81-11-8.mol

More

Less

4,4'-Diamino-2,2'-stilbenedisulfonic acid Property

Melting point:: 300 °C
Density: 1.4732 (rough estimate)
vapor pressure: 1.3hPa at 25℃
refractive index: 1.6510 (estimate)
storage temp.: Keep in dark place,Inert atmosphere,Room temperature
solubility: Aqueous Base (Slightly)
pka: -1.58±0.50(Predicted)
form: Crystalline Powder
color: Cream to yellow-brown
Water Solubility: <0.1 g/100 mL at 23 ºC
Merck: 14,595
BRN: 629516
Stability:: Stable. Combustible. Incompatible with iron, strong oxidizing agents.
LogP: -1.7--1.42 at 25℃
CAS DataBase Reference: 81-11-8(CAS DataBase Reference)
EPA Substance Registry System: Amsonic acid (81-11-8)

More

Less

Safety

Hazard Codes: C,Xn
Risk Statements: 34-22-36/37/38-20/21/22
Safety Statements: 24/25-45-36/37/39-26-22
RIDADR: UN 2583
RTECS: WJ6603000
TSCA: Yes
HS Code: 29215900
Hazardous Substances Data: 81-11-8(Hazardous Substances Data)

More

Less

Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Warning

Hazard statements

H315Causes skin irritation

H319Causes serious eye irritation

H335May cause respiratory irritation

Precautionary statements

P261Avoid breathing dust/fume/gas/mist/vapours/spray.

P264Wash hands thoroughly after handling.

P264Wash skin thouroughly after handling.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P304+P340IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

P405Store locked up.

More

Less

N-Bromosuccinimide Price

Sigma-Aldrich

Product number: 462268
Product name: 4,4′-Diamino-2,2′-stilbenedisulfonic acid
Purity: technical grade, 85%
Packaging: 100G
Price: $111
Updated: 2024/03/01

TCI Chemical

Product number: D0121
Product name: 4,4'-Diaminostilbene-2,2'-disulfonic Acid
Purity: >94.0%(T)
Packaging: 25g
Price: $39
Updated: 2024/03/01

TCI Chemical

Product number: D0121
Product name: 4,4'-Diaminostilbene-2,2'-disulfonic Acid
Purity: >94.0%(T)
Packaging: 100g
Price: $78
Updated: 2024/03/01

Alfa Aesar

Product number: A16664
Product name: 4,4'-Diaminostilbene-2,2'-disulfonic acid, 95%
Packaging: 25g
Price: $32.65
Updated: 2024/03/01

Alfa Aesar

Product number: A16664
Product name: 4,4'-Diaminostilbene-2,2'-disulfonic acid, 95%
Packaging: 100g
Price: $109.65
Updated: 2024/03/01

More

Less

4,4'-Diamino-2,2'-stilbenedisulfonic acid Chemical Properties,Usage,Production

Chemical Properties

Light Yellow Powder

Uses

4,4’-Diaminostilbene-2,2’-disulfonic Acid, 95+% (cas# 81-11-8) is a compound useful in organic synthesis.

Uses

In manufacture of dyes, bleaching agents.

General Description

Odorless yellowish microscopic needles or cream-colored powder. pH approximately 4.3 at 30 g/L water (suspension).

Air & Water Reactions

Insoluble in water.

Reactivity Profile

4,4'-Diamino-2,2'-stilbenedisulfonic acid is incompatible with iron. 4,4'-Diamino-2,2'-stilbenedisulfonic acid forms sparingly water-soluble, crystalline salts with many bisquaternary ammonium bases.

Fire Hazard

Flash point data for 4,4'-Diamino-2,2'-stilbenedisulfonic acid are not available; however, 4,4'-Diamino-2,2'-stilbenedisulfonic acid is probably combustible.

Synthesis

A typical procedure for preparation of 4,4'-Diamino-2,2'-stilbenedisulfonic acid: A solution of potassium hydroxide (3 g, 52 mmol) in a low amount of water was slowly added with stirring to a mixture of p-nitrotoluene ortho sulfonic acid (2.2 g, 10 mmol), diethylene glycol (20 mL) and 2.5 mL of hydrazine hydrate 85%. The resulting mixture was refluxed for 30 minutes, then the condenser was removed, the aqueous liquor evaporated, and refluxing continued for 2.5 hours. The reaction mixture was cooled and diluted with water when the reaction was completed. Then, the cooled and diluted reaction mixture was acidified with warm, concentrated hydrochloric acid, and the pure product was filtered.

Environmental Fate

For the environment, various NOEC and LC50 values were gained from test results; LC50 = > 1000 mg/l (acute fish); EC50 = 210 mg/l (acute daphnia); EC50 = 76 mg/l (acute algae); NOEC = 32 mg/l (algae); NOEC = 37 mg/l (longterm daphnia reproduction). The lowest toxicity result (72h-NOEC, biomass, for Selenastrum capricornutum, 32 mg/l) was used to derive a PNEC. An assessment factor of 100 was used according to the OECD Provisional Guidance for Initial Assessment of Aquatic Effects. Thus, PNEC of 4,4'-Diamino-2,2'-stilbenedisulfonic acid is 0.32 mg/l in the present report. The PEC is lower than the PNEC. The environmental risk is presumed to be low.

4,4'-Diamino-2,2'-stilbenedisulfonic acid Preparation Products And Raw materials

Raw materials

4-Nitrotoluene

Preparation Products

fluorescent whitening agent PRS fluorescent whitening agent JD-3 Fluorescent Brightener BC Direct Red Brown RN fluorescent whitening agent SBA Direct Red 227 Fluorescent Brightener VBU Reactive Yellow KE-4RN Fluorescent brightener No.31 fluorescent bleaches R fluorescent whitening agent RA Direct Blending Brilliant Red D-5BL Direct Yellow 12 Reactive Yellow 179 fluorescent whitening agent DMS Reactive Red KD-8B Reactive Orange KE-2G Fluorescent brightener 85 fluorescent bleaches BR Direct Blending Yellow D-3RNL FLUORESCENT BRIGHTENER 28 Reactive Yellow 84 Reactive Yellow KE-RN PROCION YELLOW H-E3G

More

Less

4,4'-Diamino-2,2'-stilbenedisulfonic acid Suppliers

Americas 1 Belgium 1 Canada 2 China 209 Europe 3 France 1 Germany 6 India 47 Japan 5 Russia 3 Slovakia 1 South Korea 2 Switzerland 2 The Netherlands 1 United Kingdom 14 United States 39 Global 337

HBCChem, Inc.

Tel: +1-510-219-6317
Fax: +1-650-486-1361
Email: sales@hbcchem.com
Country: United States
ProdList: 10648
Advantage: 60

Alchem Pharmtech,Inc.

Tel: 8485655694
Email: sales@alchempharmtech.com
Country: United States
ProdList: 63687
Advantage: 58

Aladdin Scientific

Tel: +1-+1(833)-552-7181
Email: sales@aladdinsci.com
Country: United States
ProdList: 52924
Advantage: 58

Aladdin Scientific

Tel: +1-+1(833)-552-7181
Email: sales@aladdinsci.com
Country: United States
ProdList: 57505
Advantage: 58

Aceschem Inc.

Tel: +1-817863-6948 +1-（817）863-6948
Email: sales@aceschem.com
Country: United States
ProdList: 19632
Advantage: 58

Great Earth Chemical Company

Tel: --
Fax: --
Country: United States
ProdList: 19
Advantage: 58

Fluorochem Ltd.

Tel: --
Fax: --
Email: enquiries@fluorochem.co.uk
Country: United States
ProdList: 4583
Advantage: 58

Alichem Inc.

Tel: --
Fax: --
Email: sales@alichem.com
Country: United States
ProdList: 6167
Advantage: 58

Parchem Fine & Specialty Chemicals

Tel: --
Fax: --
Email: info@parchem.com
Country: United States
ProdList: 1031
Advantage: 58

Ring Specialty Chemicals Inc.

Tel: --
Fax: --
Email: info@ringchemicals.com
Country: United States
ProdList: 888
Advantage: 39

Glentham Life Sciences Ltd

Tel: --
Fax: --
Email: info@glentham.com
Country: United States
ProdList: 2026
Advantage: 58

Spectrum Chemical Mfg. Corp.

Tel: --
Fax: --
Email: marketing@spectrumchemical.com
Country: United States
ProdList: 3113
Advantage: 60

HBCChem Inc.

Tel: --
Fax: --
Email: sales@hbcchem-inc.com
Country: United States
ProdList: 4569
Advantage: 30

Combi-Blocks Inc.

Tel: --
Fax: --
Email: sales@combi-blocks.com
Country: United States
ProdList: 6618
Advantage: 69

TCI America

Tel: --
Fax: --
Email: sales@tciamerica.com
Country: United States
ProdList: 6909
Advantage: 75

Frontier Scientific, Inc.

Tel: --
Fax: --
Email: sales@frontiersci.com
Country: United States
ProdList: 6222
Advantage: 86

Matrix Scientific

Tel: --
Fax: --
Email: sales@matrixscientific.com
Country: United States
ProdList: 6632
Advantage: 80

Ivy Fine Chemicals

Tel: --
Fax: --
Email: sales@ivychem.com
Country: United States
ProdList: 6493
Advantage: 58

Waterstone Technology, LLC

Tel: --
Fax: --
Email: sales@waterstonetech.com
Country: United States
ProdList: 6786
Advantage: 30

AlliChem, LLC

Tel: --
Fax: --
Email: sales@allichemllc.com
Country: United States
ProdList: 6516
Advantage: 60

Riedel-de Haen AG

Tel: --
Fax: --
Country: United States
ProdList: 6773
Advantage: 87

ChemService Inc.

Tel: --
Fax: --
Country: United States
ProdList: 6379
Advantage: 68

AK Scientific, Inc.

Tel: --
Fax: --
Email: sales@aksci.com
Country: United States
ProdList: 6347
Advantage: 65

Filo Chemical

Tel: --
Fax: --
Email: filo@filochemical.com
Country: United States
ProdList: 78
Advantage: 63

Alfa Aesar

Tel: --
Fax: --
Email: tech@alfa.com
Country: United States
ProdList: 6814
Advantage: 81

AnsisChem

Tel: --
Fax: --
Country: United States
ProdList: 409
Advantage: 38

HONEST JOY HOLDINGS LIMITED

Tel: --
Fax: --
Email: sales@honestjoy.cn
Country: United States
ProdList: 6675
Advantage: 54

2A PharmaChem USA

Tel: --
Fax: --
Email: sales@2apharmachem.com
Country: United States
ProdList: 6137
Advantage: 39

3B Scientific Corporation

Tel: --
Fax: --
Email: sales@3bsc.com
Country: United States
ProdList: 6718
Advantage: 47

Parchem Trading Ltd.

Tel: --
Fax: --
Email: info@parchem.com
Country: United States
ProdList: 794
Advantage: 76

Parchem Trading Ltd.

Tel: --
Fax: --
Email: info@par-chem.com
Country: United States
ProdList: 740
Advantage: 66

Sajjan India Pvt. Ltd.

Tel: --
Fax: --
Country: United States
ProdList: 127
Advantage: 47

Aakash Chemicals and Dye-Stuffs, Inc.

Tel: --
Fax: --
Email: info@aakashchemicals.com
Country: United States
ProdList: 1012
Advantage: 54

MP Biomedicals, Inc.

Tel: --
Fax: --
Country: United States
ProdList: 6561
Advantage: 81

Wilshire Chemical Company Inc.

Tel: --
Fax: --
Email: WilshrChem@AOL.COM
Country: United States
ProdList: 3498
Advantage: 58

ChemPacific Corporation

Tel: --
Fax: --
Email: sales@chempacific.com
Country: United States
ProdList: 6891
Advantage: 51

City Chemicals Corporation

Tel: --
Fax: --
Country: United States
ProdList: 6460
Advantage: 72

Pfaltz & Bauer, Inc.

Tel: --
Fax: --
Email: sales@pfaltzandbauer.com
Country: United States
ProdList: 6828
Advantage: 72

Aceto Corporation

Tel: --
Fax: --
Email: contact@aceto.com
Country: United States
ProdList: 2619
Advantage: 75

More

Less

View Lastest Price from 4,4'-Diamino-2,2'-stilbenedisulfonic acid manufacturers

Shanghai Xin Cheng Yue Chemical Co.,Ltd

Product: 4,4'-Diamino-2,2'-stilbenedisulfonic acid 81-11-8
Price: US $0.00-0.00/kg
Min. Order: 1000kg
Purity: 78
Supply Ability: 1000ton
Release date: 2024-01-25

Anhui Royal Chemical Co., Ltd.

Product: DSD Acid 81-11-8
Price: US $100.00-1900.00/kg
Min. Order: 1000kg
Purity: 95%
Supply Ability: 20 tons
Release date: 2024-04-23

Hebei Weibang Biotechnology Co., Ltd

Product: 4,4'-Diamino-2,2'-stilbenedisulfonic acid 81-11-8
Price: US $10.00/KG
Min. Order: 1KG
Purity: 99%
Supply Ability: 10 mt
Release date: 2024-11-21

81-11-8, 4,4'-Diamino-2,2'-stilbenedisulfonic acidRelated Search:

Ethyl 2-(Chlorosulfonyl)acetate 1,3-Diaminoguanidine monohydrochloride Citric acid Glycine Folic acid Sodium p-styrenesulfonate Sulfanilic acid Sulfamic acid monosodium salt Nickel bis(sulphamidate) TRANS-STILBENE Sulfamic acid 4-Amino-benzenesulfonic acid monosodium salt Ammonium sulfamate Ascoric Acid 4-Nitro-4'-aminostilbene-2,2'-disulfonic acid 4,4'-DINITROSTILBENE-2,2'-DISULFONIC ACID DISODIUM SALT Fluorescent Brightener 28 4,4'-BIS(4-AMINO-1-NAPHTHYLAZO)-2,2'-STILBENEDISULFONIC ACID

diaminostilbenedisulfonicacid

4,4'-Diaminodiphenylethylene-2,2'-disulfonic acid

4',4" Diamino stillbene 2'2" disulphonic acid

1,2-bis(4-amino-2-sulfophenyl)ethene

4,4'-Diamino-2,2'-stibenedisulfonic acid

4,4'-DIAMINO-2,2'-STILBENEDISULFONIC ACI D, TECH., 85%

2,2’-(1,2-ethenediyl)bis[5-amino-benzenesulfonicaci

2,2’-(1,2-ethenediyl)bis[5-amino-Benzenesulfonicacid

2,2’-(1,2-ethenediyl)bis[5-amino-benzenesulfonicacid]

2,2’-(1,2-ethylenediyl)bis(5-amino-benzenesulfonicaci

2,2’-disulfo-4,4’-stilbenediamine

4,4’-diamino-2’-stilbenedisulfonicacid

4,4’-Diaminostibene-2,2’-disulfonicacid

Benzenesulfonic acid,2,2'-(1,2-ethenediyl)bis[5-aMino-

flavonicacid

nci-c60162

p,p’-diaminodiphenylethylene-o,o’-disulfonicacid

p,p’-diaminostilbene-o,o’-disulfonicacid

tinopalbhs

4,4'-Diamino-2,2'-stiL

benedisuL

4,4'-Diaminostilbene-2,2'-disulphonicacid(Amsonicacid)

4,4'-Diamino-2,2'-st

44DIAMINO22STILBENEDISULPHONICACID

22DIAMINO44STILBENEDISULFONICACID

AMSOMICACID

4,4'-Diaminostilben-2,2'-disulfonsure

Diaminostilbene-2,2'-disulfonic acid

AKOS BBS-00004717

AMSONIC ACID

4,4 DIAMINO STILBENE 2:2 DISULFONIC ACID

4,4'-DIAMINOSTILBENE-2,2'-DISULFONIC ACID

4,4'-DIAMINO STIBEN-2,2'-DISULFONIC ACID

4,4'-DIAMINOSTILBENE-2,2'-DISULPHONIC ACID

4,4'-DIAMINOSTILBENE-2,2-DISULPHONIC ACID

4,4'-DIAMINO-2,2'-STILBENEDISULFONIC ACID

2,2'-(1,2-ethylenediyl)bis(5-aminobenzenesulfonic acid)

DSD ACID

DAS

DASD

DASDA

2,2’-(1,2-ethenediyl)bis(5-amino-benzenesulfonicaci

4,4'-Diaminostilbene-2,2'-disulfonic Acid &gt

4,4'-Diamino-2,2'-stilbenedisulfonicaci

4,4'-Diamino-2,2'-stilbenedisulfonic acid ISO 9001：2015 REACH

4,4'-Diaminostilbene-2,2'-disulfonic Acid

4，4'-Diamino-2，2'-stilbenedisulfonic acid

4,4'-Diaminodiphenylethylene-2,2'-disulfonic acid

6,6'-(Ethene-1,2-diyl)bis(3-aminobenzenesulfonic acid)

81-11-8

93981-21-2

1981-11-08

1981-11-8

C14H14N2O8S2

C15H14N2O6S2

C14H14S2N2O6

H2NC6H3SO3HCH2

C14H14N2O6S2