23848-22-8 Usage
Chemical class
Phenolic compound
Natural source
Piper nigrum (black pepper)
Applications
Skincare and cosmetic products
Properties
Anti-inflammatory, antioxidant
Therapeutic potential
Acne, skin aging, UV-induced skin damage
Enzyme inhibition
Tyrosinase (useful in skin lightening products)
Research status
Further research needed for safety and efficacy understanding
Check Digit Verification of cas no
The CAS Registry Mumber 23848-22-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,3,8,4 and 8 respectively; the second part has 2 digits, 2 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 23848-22:
(7*2)+(6*3)+(5*8)+(4*4)+(3*8)+(2*2)+(1*2)=118
118 % 10 = 8
So 23848-22-8 is a valid CAS Registry Number.
23848-22-8Relevant articles and documents
Enol Ethers, XIV. Acylation of Keto Enol Ethers with Malonyl Dichloride - A New Synthesis of Phloroglucinols
Effenberger, Franz,Schoenwaelder, Karl-Heinz
, p. 3270 - 3279 (2007/10/02)
Phloroglucinols 4 and/or 4-hydroxy-2H-pyran-2-ones 5 are formed from keto enol ethers 1 and malonyl dichloride (2a) in high yields.Since the pyranones 5 can be smoothly converted into phloroglucinols, the reaction of 1 with 2a represents a new, facile synthetic route to phloroglucinols.The reaction proceeds via formation of a chloro carbonyl ketene 8 and its subsequent reaction with 1.The product ratio 4:5 is rationalized in terms of substituent effects in the enol ether substrate.
