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58218-82-9

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58218-82-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 58218-82-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,8,2,1 and 8 respectively; the second part has 2 digits, 8 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 58218-82:
(7*5)+(6*8)+(5*2)+(4*1)+(3*8)+(2*8)+(1*2)=139
139 % 10 = 9
So 58218-82-9 is a valid CAS Registry Number.

58218-82-9Relevant articles and documents

Synthesis and characterization of novel 7-hydroxycoumarin derivatives

Mostafavi,Najjar,Maskani

, p. 423 - 425 (2013/09/02)

The synthesis of several coumarin Mannich bases is described. The reaction of natural 7-hydroxycoumarin with primary amines and two equivalents of formaldehyde in the presence of a base catalyst was studied. Several novel N-substituted angular 9,10-dihydro-2H,8H-chromeno[8,7-e][1,3]oxazin-2-ones were synthesized. Different aliphatic and aromatic amines have been used in the reaction, and the corresponding products were obtained with moderate to relatively good yields.

Selenium-bridged diiron hexacarbonyl complexes as biomimetic models for the active site of Fe-Fe hydrogenases

Gao, Shang,Fan, Jiangli,Sun, Shiguo,Peng, Xiaojun,Zhao, Xing,Hou, Jun

, p. 2128 - 2135 (2008/09/20)

Three N-substituted selenium-bridged diiron complexes [{(μ-SeCH 2)2NC6H4R}Fe2(CO) 6] (R = 4-NO2, 7; R = H, 8; R = 4-CH3, 9) were firstly prepared as biomimetic models

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