90673-17-9 Usage
Appearance
Yellow-brown liquid
Odor
Pungent
State
Liquid
Primary use
Synthesis of other organic compounds
Common employment
Intermediate in pharmaceutical manufacturing processes
Additional use
Production of fragrances and flavorings
Reactivity
Strong
Hazardous nature
Yes, considered a hazardous substance
Safety requirements
Careful handling and storage, following safety guidelines and regulations
Health and environmental risks
Potential risks if not handled properly
Check Digit Verification of cas no
The CAS Registry Mumber 90673-17-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,0,6,7 and 3 respectively; the second part has 2 digits, 1 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 90673-17:
(7*9)+(6*0)+(5*6)+(4*7)+(3*3)+(2*1)+(1*7)=139
139 % 10 = 9
So 90673-17-9 is a valid CAS Registry Number.
90673-17-9Relevant articles and documents
Convenient synthesis of ε-halo-β-ketoesters and γ,γ′-dibromoalkanones by regio- and chemoselective reaction of 2-alkylidenetetrahydrofurans with boron trihalides: A "ring-closure/ring- cleavage" strategy
Bellur, Esen,Langer, Peter
, p. 3819 - 3825 (2007/10/03)
The reaction of boron tribromide and boron trichloride with 2-alkylidenetetrahydrofurans, readily available on the basis of cyclizations of free and masked dianions with 1,2-dielectrophiles, allowed an efficient synthesis of a variety of carbonyl compounds with remote halide functionality. This includes the chemo- and regioselective synthesis of 6-bromo- and 6-chloro-3-oxoalkanoates and 1,7-dibromoheptan-4-ones. The approach outlined herein can be regarded as a "ring-closure/ring-cleavage" strategy.
