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121493-17-2

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121493-17-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 121493-17-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,1,4,9 and 3 respectively; the second part has 2 digits, 1 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 121493-17:
(8*1)+(7*2)+(6*1)+(5*4)+(4*9)+(3*3)+(2*1)+(1*7)=102
102 % 10 = 2
So 121493-17-2 is a valid CAS Registry Number.

121493-17-2Downstream Products

121493-17-2Relevant articles and documents

Heterogeneous bimetallic Pt-Sn/γ-Al2O3 catalyzed direct synthesis of diamines from N-alkylation of amines with diols through a borrowing hydrogen strategy

Wang, Liandi,He, Wei,Wu, Kaikai,He, Songbo,Sun, Chenglin,Yu, Zhengkun

supporting information; experimental part, p. 7103 - 7107 (2012/01/05)

Direct synthesis of diamines has been efficiently realized from the N-alkylation of amines with diols by means of heterogeneous bimetallic Pt-Sn/γ-Al2O3 catalyst (0.5 wt % Pt, molar ratio Pt:Sn = 1:3) through a 'Borrowing Hydrogen' strategy under ligand-free conditions. The present methodology provides an environmentally benign route to diamines.

Pyridinium derivatives, their production and use

-

, (2008/06/13)

Novel pyridinium derivatives represented by the formula (I): STR1 wherein STR2 is an optionally substituted pyridinium ring; R1 is a lower alkyl group or aralkyl group; R7 and R10 are independently hydrogen, a lower alkyl group, aryl group or aralkyl group; l is 0 or 1; R5 is a phenylene group or an alkylene group which may be substituted; R11 is an alkyl group or aryl group; X is a group of the formula: --CH2 OCH2 -- or a group of the formula: STR3 wherein R6 is hydrogen, a lower alkyl or a lower alkoxy, and m is an integer of 0 to 3; U is a group of the formula: STR4 wherein R4 is hydrogen, a lower alkyl group, aryl group or aralkyl group; Y and Z are independently a divalent chain group consisting of one to six members which is selected from the class consisting of groups of the formulae: STR5 wherein R is hydrogen, a lower alkyl group, acyl group or aryl group and at least one of which is a group of the formula: STR6 with the proviso that R may be the same or different from each other, or may form a ring together when two or more groups of the formula: STR7 are present, that R may be bonded to R4 when Y contains a group of the formula: STR8 and that R may be bonded to R11 when Z contains a group of the formula: STR9 and W? is a counter anion; are useful as a platelet activating factor antagonist.

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