Bright Red

Bright Red

Pigment Red 188

CAS: 61847-48-1

Molecular Formula: C33H24Cl2N4O6

Bright Red - Names and Identifiers

Name	Pigment Red 188
Synonyms	12467 Red HF3S C.I.12467 Bright Red Geranium Red Naphthol Red AS Pigment Red 188 Chinese Red [HO] CI Pigment Red 188 Geranium Lake [HO] Napthol Opaque [GU] Cadmium Red Scarlet (hue) Naphthol Red [CL, MH, PF] Light Vermilion (hue) [CH] Cadmium Red Light Hue [DV] Benzoic acid, 4-(((2,5-dichlorophenyl)amino)carbonyl)-2-(2-(2-hydroxy- methyl 4-[[(2,5-dichlorophenyl)amino]carbonyl]-2-[[2-hydroxy-3-[[(2-methoxyphenyl)amino]carbonyl]-1-naphthyl]azo]benzoate Benzoic acid, 4-(2,5-dichlorophenyl)aminocarbonyl-2-2-hydroxy-3-(2-methoxyphenyl)aminocarbonyl-1-naphthalenylazo-, methyl ester methyl 4-[(2,5-dichlorophenyl)carbamoyl]-2-[(2Z)-2-[3-[(2-methoxyphenyl)carbamoyl]-2-oxonaphthalen-1-ylidene]hydrazinyl]benzoate 4-[[(2,5-Dichlorophenyl)amino]carbonyl]-2-[[2-hydroxy-3-[[(2-methoxyphenyl)amino]carbonyl]-1-naphtyl]azo]benzoic acid methyl ester methyl 4-[(2,5-dichlorophenyl)carbamoyl]-2-[(2Z)-2-{3-[(2-methoxyphenyl)carbamoyl]-2-oxonaphthalen-1(2H)-ylidene}hydrazinyl]benzoate
CAS	61847-48-1
EINECS	263-272-1
InChI	InChI=1/C33H24Cl2N4O6/c1-44-28-10-6-5-9-25(28)36-32(42)23-15-18-7-3-4-8-21(18)29(30(23)40)39-38-26-16-19(11-13-22(26)33(43)45-2)31(41)37-27-17-20(34)12-14-24(27)35/h3-17,38H,1-2H3,(H,36,42)(H,37,41)/b39-29-

Bright Red - Physico-chemical Properties

Molecular Formula	C33H24Cl2N4O6
Molar Mass	643.47
Density	1.40±0.1 g/cm3(Predicted)
Melting Point	320℃
Boling Point	734.8±60.0 °C(Predicted)
Appearance	Powder
pKa	11.39±0.70(Predicted)
Refractive Index	1.66
Physical and Chemical Properties	hue or shade: brilliant yellow relative density: 1.43-1.45 Bulk density/(lb/gal):11.9-12.0 average particle size/μm:0.22 particle shape: small flake specific surface area/(m2/g):17-21 pH value/(10% slurry):7 oil absorption/(g/100g):86 hiding power: translucent reflex curve:
Use	This variety gives yellow-red color, which is mainly used for printing inks and coatings. In printing inks, the light fastness is grade 5-6, but the coloring power is slightly low, but the solvent resistance, acid/alkali, soap, sterilization treatment and other properties are good, heat-resistant 220 ℃/10min; Suitable for high-grade decorative coatings, the color light fastness is 7, non-transparent yellow red dosage form put on the market for the preparation of automotive coatings; in the polyolefin thermal stability is only 200 deg C, the scope of use is limited.

Bright Red - Reference Information

LogP	0.54 at 23℃ and pH7
EPA chemical information	Information provided by: ofmpub.epa.gov (external link)

Last Update：2024-04-10 22:29:15

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Bright Red

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