Fluorescent Brightener 28 CAS 4404-43-7

CAS:4404-43-7
분자식:C40H44N12O10S2
분자량:916.98
EINECS:224-548-7

Synonyms:CALCOFLUOR 화이트 ST;CI40622;형광 Brightener28,Calcofluor 화이트 M2R,TinopalUNPA-GX;V56;Optiblanc NL;2.5-Bis(5-tertbutyl-2-benzoxazlyl)phiophene;5triazin2-yl]아미노]–6-(phenylamino)-3;c.i.fluorescentbrighteningagent28;Fluorescentbrightener(OB);TINOPAL UNPA-GX;TINOPAL 고객

는 무엇입 형광너 28CAS4404-43-7？

Fluorescent Brightener 28 CAS 4404-43-7 （CAS 4193-55-9）is a high-efficiency, bis-triazinylaminostilbene-based optical brightening agent (OBA). It absorbs ultraviolet light (300-400 nm) and re-emits it as intense blue-violet fluorescence (400-500 nm), effectively masking the inherent yellowness of substrates and producing a bright, visually white appearance. Fluorescent Brightener 28 is particularly valued in polymer and coating applications for its excellent thermal stability and compatibility.

FLUORE 센트 BRIGTENER28 일 밝은 노란색 분말,무취,수용성에의 경우,지방,광유,파라핀,그리고 대부분의 유기 용제. 최대 흡수 값의 스펙트럼 375mm(에서 에탄올)및 최대 발광 파장은 435nm(에서 에탄올).

사양

항목	산업 급료
모	Yellow-greenish powder
순결	Correspond to standard ±1.5
E Value	510-550
수분 함량	≤5%

응용 프로그램

(1) Plastics Industry: Fluorescent Brightener 28 CAS 4193-55-9 widely used as a whitening agent for thermoplastics such as PVC, PP, PE, ABS, PS, and engineering plastics to enhance brightness and whiteness.
(2) Coatings & Paints: An effective brightener for architectural paints, industrial coatings, automotive finishes, and UV-curable systems.
(3) Synthetic Fibers: Fluorescent Brightener 28 CAS 4193-55-9 used in the spin finishing or mass pigmentation of polyester, nylon, and acetate fibers to achieve brilliant whiteness.
(4) Inks & Masterbatches: Key additive in specialty printing inks and white masterbatches for consistent whitening performance.
(5) Paper & Detergents: Fluorescent Brightener 28 CAS 4193-55-9 applied in high-quality paper coating and as an optical brightener in some industrial detergent formulations.