化合物简介
Ensulizole (INN) is a common sunscreen agent. In 1999, the United States Food and Drug Administration regulated that the name ensulizole be used on sunscreen labels in the United States. Phenylbenzimidazole sulfonic acid is primarily a UVB protecting agent providing only minimal UVA protection. The scope of UVB is 290 to 340 nanometers whereas the UVA range is 320 to 400 nanometers. For better UVA protection, it must be paired with avobenzone, titanium dioxide, or zinc oxide; outside of the United States it can also be paired with a UV absorber of the Tinosorb or Mexoryl types. Because phenylbenzimidazole sulfonic acid is water-soluble, it has the characteristic of feeling lighter on skin. As such, it is often used in sunscreen lotions or moisturizers whose aesthetic goal is a non-greasy finish. The free acid is poorly soluble in water, so it is only used as its soluble salts.
基本信息
中文名称
2-苯基苯并咪唑-5-磺酸
英文名称
2-Phenylbenzimidazole-5-sulfonic acid
中文别名
紫外线吸收剂UV-T、2-苯基-5-苯并咪唑磺酸
英文别名
Ultraviolet absorbent UV-T、2-Phenyl-5-benzimidazolesulfonic acid,Ensulizole、PHENYLBENZIMIDAZOLSULPHONICACID、2-phenyl-benzimidazole-5-sulfonic acid、2-phenyl-5-benzimidazolesulfonic acid、Novantisol、2-Phenyl-5-benzimidazolesulfonic Acid、NEO HELIOPAN HYDRO、2-phenyl-1H-benzoimidazole-5-sulfonic acid、2-Phenyl-1H-benzo[d]imidazole-5-sulfonic acid、PARSOL HS、UV ABSORBER-T、2-phenylbenzimidazole-5-sulfonate salt、2-Phenylbenzimidazole-5-sulphonic acid、Ensulizole、EUSOLEX 232、2-Phenyl-5-sulfobenzimidazole
CAS号
27503-81-7
分子式
C13H10N2O3S
分子量
274.295
精确质量
274.041
PSA
91.43
LOGP
3.5574
编号系统
MDL号
MFCD00150559
物化性质
外观与性状
白色细结晶粉末
密度
1.497g/cm3
熔点
300 °C
闪点
>100ºC
水溶解性
soluble
稳定性
Stable under normal temperatures and pressures. May decompose when exposed to light.
储存条件
Keep container closed when not in use. Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances.
安全信息
安全说明
S26-S36
危险类别码
R36/37/38
海关编码
29339990
危险品标志
Xi
生产方法及用途
用途
用作紫外吸收剂，用于防晒护肤化妆品中。
