Product :
Solvent Red 27
C.I. Name/No:Solvent red 27;
C.I.26125
CAS 1320-06-5
Hue: Bluish Red
Solvent Red 27 also can be called as
Oil Red O, Sudan Red 5B, C.I. 26125, C26H24N4O is a lysochrome (fat-soluble dye) diazo dye used for staining of neutral triglycerides and lipids on frozen sections and some lipoproteins on paraffin sections. It has the appearance of a red powder with maximum absorption at 518(359) nm.
Synonyms :1-(2,5-Dimethyl-4-(2,5-dimethylphenylazo)phenylazo)-2-naphthol; Oil red O
Molecular structure

Molecular formula: C
26H
24N
4O
Molecular weight: 408.49
Foreign relative product:
Fat Red 2B 02 (CLAR)
Oil Red O (SIM)
Spectra Oil Red O (SPEC)
Sudan Red 5B [W] (BASF)
Waxol Red DXXN (DEVI)
ABCOL Oil Red O (ACI)
Aizen SOT Red-2 (HCC)
Use: Coating, plastic cement, printing ink, and particularly applicable to the coloring
Of petroleum Products
| Light |
Heat fastness(℃) |
Water fastness |
Soda (5%) |
hydrochloric acid (5%) |
| melting point |
stability |
| Good |
108-120 |
200 |
insoluble |
unaffected |
unaffected |
Other hot products:Solvent red 23, Solvent red 135 , Solvent red 49, Solvent red 111, Solvent red 24