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1442655-93-7

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1442655-93-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1442655-93-7 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,4,4,2,6,5 and 5 respectively; the second part has 2 digits, 9 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 1442655-93:
(9*1)+(8*4)+(7*4)+(6*2)+(5*6)+(4*5)+(3*5)+(2*9)+(1*3)=167
167 % 10 = 7
So 1442655-93-7 is a valid CAS Registry Number.

1442655-93-7Downstream Products

1442655-93-7Relevant articles and documents

Calcium complexes containing oxalamidinate ligands as catalysts for ε-caprolactone polymerization

Huang, Tzu-Lun,Chen, Chi-Tien

, p. 9255 - 9262 (2013/07/27)

A series of calcium complexes containing oxalamidinate ligands is described. Reactions of oxalamidinate ligand precursors, [PhNC{NH(CH 2)2OMe}-C{NH(CH2)2OMe}NPh] (1), [PhNC{NH(CH2)2NMe2}-C{NH(CH2) 2NMe2}NPh] (2), [PhTriMeNC{NH(CH 2)2OMe}-C{NH(CH2)2OMe}NPh TriMe] (3), [PhTriMeNC{NH(CH2) 2SMe}-C{NH(CH2)2SMe}NPhTriMe] (4), [PhTriMeNC{NHCH2Py}-C{NHCH2Py}NPh TriMe] (5), with two molar equivalents of Ca[N(SiMe3) 2]2(THF)2 gave calcium oxalamidinate complexes, [Ca{N(SiMe3)2}(THF)(PhN)C{N(CH2) 2OMe}-]2 (6), [Ca{N(SiMe3)2}(THF) (PhN)C{N(CH2)2NMe2}-]2 (7), [Ca{N(SiMe3)2}(THF)(PhTriMeN)C{N(CH 2)2OMe}-]2 (8), [Ca{N(SiMe3) 2}(THF)(PhTriMeN)C{N(CH2)2SMe}-] 2 (9), [Ca{N(SiMe3)2}(THF)(Ph TriMeN)C{NCH2Py}-]2 (10), respectively. The molecular structure of complex 7 was further characterized by the single crystal X-ray diffraction technique. The catalytic activities of complexes 6-10 toward the ring opening polymerization of ε-caprolactone were studied. Complex 8 exhibited excellent activity for the polymerization of ε-caprolactone with controlled molecular weights and polydispersities.

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