87034-21-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 87034-21-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,7,0,3 and 4 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 87034-21:
(7*8)+(6*7)+(5*0)+(4*3)+(3*4)+(2*2)+(1*1)=127
127 % 10 = 7
So 87034-21-7 is a valid CAS Registry Number.
87034-21-7Relevant articles and documents
SYNTHESIS AND SEVERAL TRANSFORMATIONS OF 1-ARYL ETHERS OF 1,2-PENTANEDIOL
Gasanov, V. S.,Alekperov, R. K.
, p. 1073 - 1077 (2007/10/02)
The reaction of 1-bromo-2-pentanol with substituted phenols in alkaline medium yield 1-aryl ethers of 1,2-pentanediol.The condensation of these ethers with α-chloroethers, carboxylic acid chlorides, and aromatic isocyanates gives the corresponding derivat