156049-57-9 Usage
Chemical class
Cyclic ethers
Uses
a. Solvent
b. Intermediate in the production of pharmaceuticals
c. Intermediate in the production of pesticides
d. Intermediate in the production of other organic compounds
Physical state
Colorless liquid
Odor
Slightly sweet
Flammability
Highly flammable
Safety precautions
a. Potential to cause skin irritation
b. Potential to cause eye irritation
c. Potential to cause respiratory system irritation
d. Proper handling required
Toxicity
Low acute toxicity in animal studies
Check Digit Verification of cas no
The CAS Registry Mumber 156049-57-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,6,0,4 and 9 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 156049-57:
(8*1)+(7*5)+(6*6)+(5*0)+(4*4)+(3*9)+(2*5)+(1*7)=139
139 % 10 = 9
So 156049-57-9 is a valid CAS Registry Number.
156049-57-9Relevant articles and documents
Dilithiated 2-(Chloromethyl)-3-tosylpropene: A New γ-Chlorinated Allyl Sulfone Dianion in Organic Synthesis
Najera, Carmen,Sansano, Jose M.
, p. 3491 - 3508 (2007/10/02)
Dilithiation of 2-(chloromethyl)-3-tosylpropene (1) with n-butyllithium at -90 deg C in the presence of DMPU affords the allylic dianion 2 which reacts with deuterium oxide or very reactive alkylating agents to give α,α-disubstituted products 3 or 4, resp
