Scarlet FG

Scarlet FG

Acid Red 374

CAS: 6507-78-4

Molecular Formula: C38H29N4Na3O11S3

Scarlet FG - Names and Identifiers

Name	Acid Red 374
Synonyms	Scarlet FG Acid Red 374 C.I. Acid Red 374 Weak Acid Scarlet FG Acid red 374 (C.I. 24785) Best Acid Milling Scarlet F 2G 1,3-Naphthalenedisulfonic acid, 7-hydroxy-8-4-1-4-(1-hydroxy-4-sulfo-2-naphthalenyl)azophenylcyclohexylphenylazo-, trisodium salt trisodium 7-hydroxy-8-[[4-[1-[4-[(1-hydroxy-4-sulphonato-2-naphthyl)azo]phenyl]cyclohexyl]phenyl]azo]naphthalene-1,3-disulphonate Trisodium 7-hydroxy-8-((4-(1-(4-((1-hydroxy-4-sulphonato-2-naphthyl)azo)phenyl)cyclohexyl)phenyl)azo)naphthalene-1,3-disulphonate trisodium (8Z)-7-oxo-8-{2-[4-(1-{4-[(2E)-2-(1-oxo-4-sulfonatonaphthalen-2(1H)-ylidene)hydrazinyl]phenyl}cyclohexyl)phenyl]hydrazinylidene}-7,8-dihydronaphthalene-1,3-disulfonate
CAS	6507-78-4
EINECS	229-397-0
InChI	InChI=1/C38H32N4O11S3.3Na/c43-32-17-8-23-20-28(54(45,46)47)21-34(56(51,52)53)35(23)36(32)42-40-27-15-11-25(12-16-27)38(18-4-1-5-19-38)24-9-13-26(14-10-24)39-41-31-22-33(55(48,49)50)29-6-2-3-7-30(29)37(31)44;;;/h2-3,6-17,20-22,39-40H,1,4-5,18-19H2,(H,45,46,47)(H,48,49,50)(H,51,52,53);;;/q;3*+1/p-3/b41-31+,42-36+;;

Scarlet FG - Physico-chemical Properties

Molecular Formula	C38H29N4Na3O11S3
Molar Mass	882.82137
Physical and Chemical Properties	Dark red powder. Dissolved in water, the aqueous solution was orange-red, and the addition of concentrated hydrochloric acid was still orange-red; The addition of concentrated sodium hydroxide solution was orange-brown. Slightly soluble in ethanol was golden yellow. In concentrated sulfuric acid was red purple, diluted orange.

Scarlet FG - Reference Information

Use	weak acid scarlet FG is suitable for dyeing wool, silk, nylon and its fabrics. used for dyeing nylon, wool and silk
production method	with 4,4 '-diaminodiphenylcyclohexane, G acid, NW acid as raw materials, the former was first double nitrided and then coupled with G acid and NW acid, respectively, to obtain the product. The final product was obtained by filtration, drying and pulverization..

Last Update：2024-04-09 21:04:16

Scarlet FG

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Scarlet FG

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