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

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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)

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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)

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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.

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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

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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

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

Americas 1 Belgium 1 Canada 2 China 207 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 335

J & K SCIENTIFIC LTD.

Tel: 010-82848833 400-666-7788
Fax: 86-10-82849933
Email: jkinfo@jkchemical.com
Country: China
ProdList: 96815
Advantage: 76

Meryer (Shanghai) Chemical Technology Co., Ltd.

Tel: 4006608290; 18621169109
Fax: 86-21-61259102
Email: market03@meryer.com
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3B Pharmachem (Wuhan) International Co.,Ltd.

Tel: 821-50328103-801 18930552037
Fax: 86-21-50328109
Email: 3bsc@sina.com
Country: China
ProdList: 15848
Advantage: 69

Alfa Aesar

Tel: 400-6106006
Fax: 021-67582001/03/05
Email: saleschina@alfa-asia.com
Country: China
ProdList: 30132
Advantage: 84

TCI (Shanghai) Development Co., Ltd.

Tel: 021-67121386
Fax: 021-67121385
Email: Sales-CN@TCIchemicals.com
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Energy Chemical

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Shanghai Hanhong Scientific Co.,Ltd.

Tel: 021-54306202 13764082696;
Email: info@hanhongsci.com
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Chemsky（shanghai）International Co.,Ltd.

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Shandong Xiya Chemical Co., Ltd

Tel: 13355009207 13355009207
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RYSS TECH LTD

Tel: 400-188-0725 +86 21 34310725 13611771617
Fax: +86 21 34311076
Country: China
ProdList: 2002
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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

Hebei Yanxi Chemical Co., Ltd.

Product: 4,4'-Diamino-2,2'-stilbenedisulfonic acid 81-11-8
Price: US $0.00/kg
Min. Order: 1kg
Purity: 0.99
Supply Ability: 20 tons
Release date: 2023-11-17

Hebei Guanlang Biotechnology Co., Ltd.

Product: 4,4'-Diamino-2,2'-stilbenedisulfonic acid 81-11-8
Price: US $30.00-10.00/KG
Min. Order: 50KG
Purity: 99%
Supply Ability: 500000kg
Release date: 2022-09-20

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

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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

81-11-8

93981-21-2

1981-11-08

1981-11-8

C14H14N2O8S2

C15H14N2O6S2

C14H14S2N2O6

H2NC6H3SO3HCH2

C14H14N2O6S2

Stilbenes

Organic Building Blocks

Sulfonic/Sulfinic Acids