Pigment Red 49:2
Name:C.I.Pigment Red 49:2,C.I.15630:2
Molecular Structure: Single azo
C.I.Pigment Red 49:2,C.I.15630:2,CAS 1103-39-5,378.40,C20H14N2O4S,Lithol Dark Red,Lithol Dark Red BS,Lithol Dark Red HW
Molecular Formula:C20H14N2O4S
Molecular Weight: 378.40
CAS Registry Number:1103-39-5
Manufacturing Methods :2-Aminonaphthalene-1-sulfonic acid diazotization, and Naphthalen-2-ol coupling, and then into calcium salt.
Properties and Applications:brilliant blue light red, shallow blue light pink. Slightly soluble in hot water and ethanol, slightly soluble in acetone. In concentrated sulfuric acid to red light purple, purple red after diluted solution, and then have red brown precipitation; In concentrated nitric acid for brown light red solution; Slightly soluble in sodium hydroxide solution. Dye ethanol solution to join concentrated hydrochloric acid for brown light purple; Add sodium hydroxide color constant.
| Light Fastness | Heat resistance(℃ ) | Sodium carbonate(5%) | Muriatic acid(5%) | Oleic acid | PVC migration | Soap micelle bleeding | |
| Melting point | Stable | ||||||
| General to Good | Stable to 150 | Good | Well | General | Bleeding | ||
List of Suppliers:
Aquatone Red 49:2 (ISR-4920) ( Sun Chemical Corp. )
Calcium Lithol Red (Magruder Color Company Inc.)
DCC 2303 Calcium Lithol (Dominion Colour Corp.)
DCC 2304 Calcium Lithol(Dominion Colour Corp.)
DCC 8303 Calcium Lithol (HS) (Dominion Colour Corp.)
DCC 8304 Calcium Lithol (HS) (Dominion Colour Corp.)
Everbright Red RB 3156 (Sinochem Shanghai I/E Corp/Schecho PuDong Corporation)
Fuji Red 2R 850P (Fuji Pigment Co. Ltd)
Jupistar Lithol Rubine JLR ( Jupiter Dyes Pvt Ltd )
Lionol Red L-111 (Toyo Ink Mfg Co Ltd)
Lithol Dark Red (Sinochem Liaoning Import & Export Corporation)
Lithol Dark Red( Shaanxi Foreign Tade )
Lithol Dark Red BS (Hangzhou Dikai Chemical Co Ltd)
Lithol Dark Red HW(Hangzhou Dikai Chemical Co Ltd)
Lithol Red ( Pyosa Pigments )
Metrochem Organic Pigment Red No. 5 ( Metrochem Industries Ltd )
Perma Pigment Red CT (Highland Organic Pigments Ltd)
Pigment Red 49:2(CPMA)
Pigment Red RC (Colorom SA)
Pigment Red Toner CT( Sharda International )
Pigment TSA Red 49:2 ( Trade-Search Associates )
Red RB(Sinochem Ningbo Imp & Exp Corp)
Rubine S6B ( Shaanxi Foreign Tade )
Signal Red(Monarch Dyestuffs Industries)
Solintor Red WF-40 NT(Intennedios Organicos SA)
Supraflex Red 49:2 ( Pyosa Pigments )
Suthol Red (Ca) 530(Sudarshan Chemical Industries Ltd)