Name: Optical Brightener TOB
C.I.: 236
CAS: 3333-62-8
Appearance: Off-white powder
Purity:
Capacity：500mt/year
Min.packing: 100gram
Application: It can replace OB,Suitable for whitening and brightening general plastics, good weather-resistance, high efficiency, environmental-friendly, first choice for whitening top grade PVC products.
Standard: Enterprise export
Manufacturer: Jinan Richnow Chemical Co., Ltd.
Synonyms: Fluorescent Brightener 236
7-(2H-Naphtho[1,2-d]triazol-2-yl)-3-phenyl-2H-1-benzopyran-2-one
Hakkol PSR
Leucophor EGM
Molecular Formula: C25H15N3O2
Molecular Weight: 389.41
CAS Registry Number: 3333-62-8
EINECS: 222-067-7
Solubility: Insuluble(2.3E-5 g/L) (25 ºC)
Density: 1.35±0.1 g/cm3 (20 ºC 760 Torr)
Melting point: 250-251 ºC
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