204654-92-2 Usage
General Description
5-Bromo-1-ethoxy-2,3-difluoro-benzene, also known as 1-bromo-2,3-difluoro-5-ethoxybenzene, is a chemical compound with the molecular formula C8H7BrF2O. It is a colorless liquid with a molecular weight of 231.04 g/mol and a boiling point of 224-226°C. This chemical is commonly used as an intermediate in the synthesis of pharmaceuticals and agrochemicals, as well as in the production of dyes and other organic compounds. It is important to handle this compound with care, as it is considered harmful if ingested, inhaled, or in contact with the skin, and it may also cause irritation to the eyes and respiratory system.
Check Digit Verification of cas no
The CAS Registry Mumber 204654-92-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,4,6,5 and 4 respectively; the second part has 2 digits, 9 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 204654-92:
(8*2)+(7*0)+(6*4)+(5*6)+(4*5)+(3*4)+(2*9)+(1*2)=122
122 % 10 = 2
So 204654-92-2 is a valid CAS Registry Number.
204654-92-2Relevant articles and documents
LIQUID CRYSTAL COMPOUND HAVING BIPHENYLENE, LIQUID CRYSTAL COMPOSITION AND LIQUID CRYSTAL DISPLAY DEVICE
-
Paragraph 0197, (2018/05/16)
Provided are a liquid crystal compound satisfying at least one of physical properties such as high stability to heat or light, a high clearing point (or high maximum temperature), low minimum temperature of a liquid crystal phase, small viscosity, large optical anisotropy, large negative dielectric anisotropy, a suitable elastic constant and good compatibility with other liquid crystal compounds, a liquid crystal composition containing the compound and a liquid crystal display device including the composition. A compound is represented by formula (1): wherein, R1 and R2 are alkyl having 1 to 15 carbons; A1, A2, A3 and A4 are 1,4-cyclohexylene and 1,4-phenylene; Z1, Z2, Z3 and Z4 are a single bond; Y1, Y2 and Y3 are fluorine; and a, b, c and d are 0 or 1, and a sum of a, b, c and d is an integer from 0 to 3, or the like.
