5409-99-4 Usage
General Description
(5-tert-butyl-2-methoxyphenyl)(phenyl)methanone, also known as 5-tert-butyl-2-methoxybenzophenone, is a chemical compound with the molecular formula C23H26O2. It is a white to off-white powder with a melting point of around 45-47°C. (5-tert-butyl-2-methoxyphenyl)(phenyl)methanone is commonly used as a UV filter in sunscreen and other cosmetic products to protect the skin from the harmful effects of ultraviolet radiation. It absorbs UV-B and UV-A rays and converts them into harmless heat, preventing damage to the skin. Additionally, it is also used as a photoinitiator in the production of photopolymers and UV-curable coatings. The compound has low acute toxicity and is considered safe for use in personal care products when used in accordance with regulations and guidelines.
Check Digit Verification of cas no
The CAS Registry Mumber 5409-99-4 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 5,4,0 and 9 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 5409-99:
(6*5)+(5*4)+(4*0)+(3*9)+(2*9)+(1*9)=104
104 % 10 = 4
So 5409-99-4 is a valid CAS Registry Number.
5409-99-4Relevant articles and documents
Selective Demethylation of 1,1-Bis(5-tert-butyl-2-methoxyphenyl)ethanol with Chlorohydroalane
Yamato, Takehiko,Inoue, Hisataka,Maeda, Kenji,Tashiro, Masashi
, p. 1731 - 1745 (2007/10/03)
The action of chlorohydroalane (AlH2Cl) on 1,1-bis(5-tert-butyl-2-methoxyphenyl)ethanol (3b) in ether led to a novel demethylation reaction which afforded 1,1-bis(5-tert-butyl-2-hydroxyphenyl)ethanol (5b).Hydroalane in ether is an effective reagent for se
