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DIRECT RED 75 (C.I. 25380)

Direct Red 75

CAS: 2829-43-8

Molecular Formula: C33H22N8Na4O15S4

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DIRECT RED 75 (C.I. 25380) - Names and Identifiers

Name Direct Red 75
Synonyms CI 25380
C.I. 25380
CI NO 25380
Direct Red 75
Direct Fast Pink BK
C.I. Direct Red 75 (VAN)
Vital New Red (C.I. 25380)
DIRECT RED 75 (C.I. 25380)
SIRIUS ROSE BB, FOR MICROSCOPY
Aizen Primula Pink 2BLH special
C.I. Direct Red 75, tetrasodium salt (8CI)
tetrasodium 5,5'-[carbonylbis[imino(2-sulphonato-4,1-phenylene)azo]]bis(6-amino-4-hydroxynaphthalene-2-sulphonate)
(6E)-6-imino-5-[2-(4-{[(4-{2-[(2E)-2-imino-8-oxo-6-sulfo-2,8-dihydronaphthalen-1-yl]hydrazino}-2-sulfophenyl)carbamoyl]amino}-3-sulfophenyl)hydrazino]-4-oxo-4,6-dihydronaphthalene-2-sulfonic acid
(6E)-6-imino-5-[2-(4-{[(4-{2-[(2E)-2-imino-8-oxo-6-sulfo-2,8-dihydronaphthalen-1-yl]hydrazino}-3-sulfophenyl)carbamoyl]amino}-2-sulfophenyl)hydrazino]-4-oxo-4,6-dihydronaphthalene-2-sulfonic acid
CAS 2829-43-8
EINECS 220-593-1
InChI InChI=1/C33H26N8O15S4/c34-21-5-1-15-9-19(57(45,46)47)13-25(42)29(15)31(21)40-38-17-3-7-23(27(11-17)59(51,52)53)36-33(44)37-24-8-4-18(12-28(24)60(54,55)56)39-41-32-22(35)6-2-16-10-20(58(48,49)50)14-26(43)30(16)32/h1-14,34-35,38-41H,(H2,36,37,44)(H,45,46,47)(H,48,49,50)(H,51,52,53)(H,54,55,56)/b34-21+,35-22+

DIRECT RED 75 (C.I. 25380) - Physico-chemical Properties

Molecular FormulaC33H22N8Na4O15S4
Molar Mass990.79
Density1.9g/cm3
AppearancePowder
Storage ConditionRT, dark
Refractive Index1.82
MDLMFCD00004117
Physical and Chemical PropertiesBrown powder. Water-soluble, slightly soluble in ethylene glycol ether, ethanol, insoluble in other organic solvents. The aqueous solution was magenta, and the addition of concentrated hydrochloric acid resulted in a purple precipitate, and the addition of caustic soda resulted in a red precipitate. In concentrated sulfuric acid was gray blue, diluted purple; In concentrated nitric acid partially dissolved in black. Slight color change of copper and iron ions during staining.

DIRECT RED 75 (C.I. 25380) - Risk and Safety

WGK Germany3

DIRECT RED 75 (C.I. 25380) - Reference Information

EPA chemical information Information provided by: ofmpub.epa.gov (external link)
use direct sun-resistant pink BK is used for dyeing and direct printing of cotton and viscose fabrics to obtain pink. It has good leveling and transfer dyeing, and the dyeing rate is average. After dyeing, the fixing agent Y is commonly used to improve the wet fastness, but the color light is slightly blue. It is also used for dyeing and printing of silk, wool and nylon fabrics, as well as high-temperature dyeing polyester-viscose blended fabrics with disperse dyes.
production method using p-nitroaniline o-sulfonic acid and γ acid as main raw materials, p-nitroaniline o-sulfonic acid is first diazotized, coupled with γ acid, after reduction, condensed with phosgene or bis (trichloromethyl) carbonate to obtain the product, and salted out, filtered, dried and crushed to obtain the finished product..
Last Update：2024-04-09 15:16:49
DIRECT RED 75 (C.I. 25380)
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Shanghai Amole Biotechnology Co., Ltd.
Spot supply
Product Name: Sirius Rose BB Request for quotation
CAS: 2829-43-8
Tel: 400-968-2212
Email: 3623107365@qq.com
Mobile: 18916960931
QQ: 3623107365 Click to send a QQ message
Wechat: 18916960931
SHANGHAI ACMEC BIOCHEMICAL TECHNOLOGY CO., LTD.
Spot supply
Product Name: Sirius Rose BB Visit Supplier Webpage Request for quotation
CAS: 2829-43-8
Tel: +86-400-900-4166
Email: product@acmec-e.com
Mobile: +86-18621343501
QQ: 2881950922 Click to send a QQ message
Wechat: 18621343501
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MedChemExpress (MCE)
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CAS: 2829-43-8
Tel: 609-228-6898
Email: sales@medchemexpress.com
　　　　 tech@medchemexpress.com
Mobile: 609-228-6898
SKYRUN INDUSTRIAL CO.,LTD
Spot supply
Product Name: Chlorazol Fast Pink Visit Supplier Webpage Request for quotation
CAS: 2829-43-8
Tel: +86 0571-86722205
Email: sales@chinaskyrun.com
Mobile: +8618958170122
QQ: 2531159185 Click to send a QQ messageSend QQ message
Wechat: chinaskyrun
Shanghai Yuanye Bio-Technology Co., Ltd.
Product Name: Sirius Rose BB Visit Supplier Webpage Request for quotation
CAS: 2829-43-8
Tel: 18301782025
Email: 3008007409@qq.com
Mobile: 18021002903
QQ: 3008007409 Click to send a QQ message
View History
DIRECT RED 75 (C.I. 25380)
CALCOCID MILLING YELLOW R
Cardamoni
BENZENESULPHONICACID,DODECYLESTER
C.I. Solvent Red 43
C.I. Acid Black 24
ZIRCONIUM OXYNITRATE
L-Y-GLUTAMYL-L-GLUTAMIC ACID
Zinc, desilverizing skims
iso-Butylene resin (liquid)
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