Benzophenone-4 CAS 4065-45-6

CAS: CAS:4065-45-6

Molecular Formula: C14H12O6S

Molecular Weight: 308.31

EINECS: 223-772-2

Synonyms: Uvistat 1121;UV ABSORBER HMBS;5-BENZOYL-4-HYDROXY-2-METHOXYBENZENESULFONIC ACID;TIMTEC-BB SBB002961;SULISOBENZONE;spectra-sorb uv 284;2-HYDROXY-4-METHOXYBENZOPHENONE-5-SULPHONIC ACID;Uv absorber BP-4(UV-284); 2-hydroxy-4-methoxybenzophenone-5-sulfonic acid bp-4; benzophenone 4 in skin care; benzophenone-4 for skin; uv-284 manufacturers

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What is CAS 4065-45-6 Benzophenone-4?

UV absorber BP-4 belongs to the benzophenone class of compounds. Benzophenone-4 is white or light yellow powder at room temperature, which can effectively absorb 285~325Im of ultraviolet light. Benzophenone-4 is a kind of broad spectrum ultraviolet absorber with high absorption rate, non-toxic, no photosensitization, no teratogenicity, and good light and heat stability. BP-4 is widely used in sunscreen, honey, lotion, oil and other cosmetics.

Specification

ITEM	STANDARD
Appearance	Off-White Powder
Purity(HPLC)	99.50%min
Melting Point Deg.C	160.0℃min
Dry loss	2.0%max
PH,1%Aqueous Solution@25C	1.20-2.20
Gardner colour(10%	4.0max
	16.0NTU max
UV absorbance E1%cm,in water at max.285nm	460min
UV absorbance E1%cm,in water at max.325nm	290min
K-Value@285nm, L/g-cm	46.0-50.0
Heavy metals as Pb	20ppm max

Application

1.As a UV resistant finishing agent, it has good anti-aging and softening effects on cotton and polyester fibers.
2. BP-4 widely used as anti ultraviolet finishing agent in sunscreen cosmetics such as sunscreen, cream, honey, lotion, oil, etc
3. BP-4 can also be used as a UV absorber in other water-soluble inks, coatings, etc