Pigment Red 3

Toluidine red

2-Naphthalenol,1-[2-(4-methyl-2-nitrophenyl)diazenyl]-;C.I. Pigment Red 3;2-Naphthalenol,1-[(4-methyl-2-nitrophenyl)azo]-;Toluidine red;1-[2-(4-Methyl-2-nitrophenyl)diazenyl]-2-naphthalenol;C.I. 12120;Accosperse Toluidine Red XL;ADC Toluidine Red B;Calcotone Toluidine Red YP;Carnelio Helio Red;Chromatex Red J;Dainichi Permanent Red 4R;Deep Fastona Red;Duplex Toluidine Red L 20-3140;Eljon Fast Scarlet PV Extra;Eljon Fast Scarlet RN;Enialit Light Red RL;Fastona Red B;Fastona Scarlet RL;Fastona Scarlet YS;Fast Red A;Fast Red J;Fast Red R;Fast Red AB;Fast Red JE;Hansa Red B;Hansa Scarlet RB;Hansa Red G;Hansa Scarlet RN;Hansa Scarlet RNC;Helio Fast Red BN;Helio Fast Red RL;Helio Fast Red RN;Helio Red RL;Helio Red Toner;Hispalit Fast Scarlet RN;Independence Red;Irgalite Fast Red P 4R;Irgalite Fast Scarlet RND;Irgalite Red PV 2;Irgalite Red RNPX;Irgalite Scarlet RB;Isol Fast Red HB;Isol Fast Red RN 2B;Isol Fast Red RN 2G;Isol Fast Red RNB;Isol Fast Red RNG;Isol Toluidine Red HB;Isol Toluidine Red RN 2B;Isol Toluidine Red RN 2G;Isol Toluidine Red RNB;Isol Toluidine Red RNG;Kromon Helio Fast Red;Kromon Helio Fast Red YS;Lake Red 4R;Lake Red 4RII;Lithol Fast Scarlet RN;Lutetia Fast Red 3R;Lutetia Fast Scarlet RF;Lutetia Fast Scarlet RJN;Monolite Fast Scarlet CA;Monolite Fast Scarlet GSA;Monolite Fast Scarlet RBA;Monolite Fast Scarlet RN;Monolite Fast Scarlet RNA;Monolite Fast Scarlet RNV;12238-48-1;12240-01-6;12240-02-7;39310-30-0;78690-69-4;1878204-43-3

2425-85-6

C17H13N3O3

InChIKey=ZLFVRXUOSPRRKQ-UHFFFAOYSA-N

307.30300

307.30

219-372-2

7K26S08256

45193

DTXSID8021226

Yellowish red solid|Hue varies considerably with particle size and therefore several shades are commercially available.

2927000090

Bulk Drug Intermediates

90.77000

5.70060

Yellowish-red to red powder or solid. (NTP, 1992)

1.32 g/cm3

270-272ºC

543.5ºC at 760 mmHg

1.66

In water, 4.85X10-2 mg/L at 25 deg C (est)

Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances.

8.02E-10mmHg at 25°C

Henry's Law constant = 1.2X10-12 atm-cu m/mole at 25 °C (est)

Hydroxyl radical reaction rate constant = 1.8X10-11 cu cm/molecule-sec at 25 °C (est)

Sensitive to moisture Dust suspensions in air can be explosive at certain concentrations. Insoluble in water.

Azo, Diazo, Azido, Hydrazine, and Azide Compounds

Explosive

C.I. PIGMENT RED 3 may form toxic gases with acids, aldehydes, amides, carbamates, cyanides, inorganic fluorides, halogenated organics, isocyanates, ketones, metals, nitrides, peroxides, phenols, epoxides, acyl halides, and strong oxidizing or reducing agents. May form flammable gases with alkali metals. Explosive combination can occur with strong oxidizing agents, metal salts, peroxides, and sulfides.