940-93-2 Usage
General Description
2,4,6-Trimethylpyriliumperchlorate is a chemical compound that is commonly used as a reagent for the quantitative determination of cerium via spectrophotometry. It is a yellow crystalline solid with the molecular formula C9H12ClN04. The compound is known for its unique ability to form stable complexes with cerium ions, making it a valuable tool in analytical chemistry. It is also used as a reagent in the synthesis of various organic compounds and is known for its high thermal stability. However, it is important to handle this compound with caution as it is considered to be irritant and harmful if ingested or inhaled.
Check Digit Verification of cas no
The CAS Registry Mumber 940-93-2 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 9,4 and 0 respectively; the second part has 2 digits, 9 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 940-93:
(5*9)+(4*4)+(3*0)+(2*9)+(1*3)=82
82 % 10 = 2
So 940-93-2 is a valid CAS Registry Number.
InChI:InChI=1/C8H11O.ClHO4/c1-6-4-7(2)9-8(3)5-6;2-1(3,4)5/h4-5H,1-3H3;(H,2,3,4,5)/q+1;/p-1
940-93-2Relevant articles and documents
FORMATION OF PYRYLIUM SALTS IN THE ACYLATION OF STERICALLY HINDERED QUINONES
Ukhin, L. Yu.,Dolgopolova, N. A.,Morkovnik, Z. S.,Kuz'mina, L. G.,Struchkov, Yu. T.
, p. 364 - 368 (2007/10/02)
The reaction of 3,5-di-tert-butyl-o-benzoquinone and 2,6-di-tert-butyl-p-benzoquinone with solutions of 70percent HClO4 in acetic and propionic anhydrides and with boron trifluoride etherate in acetic anhydride leads to the formation of pyrylium salts in high yields.
