127233-59-4 Usage
Chemical compound
1H-2-Benzopyran, 1-ethoxy-3-phenylis a chemical compound with the molecular formula C18H16O2.
Natural occurrence
Coumarin is found naturally in many plants, including tonka beans, sweet clover, and cinnamon.
Odor
Coumarin has a sweet, vanilla-like odor.
Flavoring agent
It is used as a flavoring agent in the food and fragrance industries.
Use in perfumes and cosmetics
Coumarin is used in perfumes, soaps, and cosmetics for its pleasant scent.
Medicinal properties
Coumarin has been studied for its potential medicinal properties, including its ability to act as an anticoagulant and its potential anticancer effects.
Toxicity
High doses of coumarin can be toxic.
Regulation
Its use in medications and food products is regulated in many countries.
Check Digit Verification of cas no
The CAS Registry Mumber 127233-59-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,7,2,3 and 3 respectively; the second part has 2 digits, 5 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 127233-59:
(8*1)+(7*2)+(6*7)+(5*2)+(4*3)+(3*3)+(2*5)+(1*9)=114
114 % 10 = 4
So 127233-59-4 is a valid CAS Registry Number.
127233-59-4Relevant articles and documents
Pd(II) acts simultaneously as a Lewis acid and as a transition-metal catalyst: Synthesis of cyclic alkenyl ethers from acetylenic aldehydes
Asao, Naoki,Nogami, Tsutomu,Takahashi, Kumiko,Yamamoto, Yoshinori
, p. 764 - 765 (2002)
The reaction of carbon-tethered acetylenic aldehydes with alcohols in the presence of a catalytic amount of Pd(OAc)2 in 1,4-dioxane at room temperature gave the 5- or 6-membered acetal products in high yields. The 13C NMR studies suggested that a Pd(II) catalyst exhibited dual roles in the present reaction; the attack of ROH to aldehyde is catalyzed by Lewis acidic Pd(OAc)2, and the nucleophilic oxygen of the resulting hemiacetal reacts with alkyne complexed by Pd(II), giving the alkenyl ethers. Copyright
