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133505-00-7

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133505-00-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 133505-00-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,3,5,0 and 5 respectively; the second part has 2 digits, 0 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 133505-00:
(8*1)+(7*3)+(6*3)+(5*5)+(4*0)+(3*5)+(2*0)+(1*0)=87
87 % 10 = 7
So 133505-00-7 is a valid CAS Registry Number.

133505-00-7Relevant articles and documents

N-heterocyclic carbene catalyzed ring expansion of 4-formyl-β-lactams: Synthesis of succinimide derivatives

Li, Gong-Qiang,Li, Yi,Dai, Li-Xin,You, Shu-Li

, p. 3519 - 3521 (2007)

N-Heterocyclic carbene (NHC) has been employed as an efficient catalyst for ring expansion of 4-formyl-β-lactams, allowing the facile synthesis of succinimide derivatives. This organocatalytic process features readily availability of the catalyst, low cat

The stereoselective preparation of mono- and bis-β-lactams by the 1,4-diaza 1,3-diene-acid chloride condensation: Scope and synthetic applications

Alcaide,Martin-Cantalejo,Perez-Castells,Rodriguez-Lopez,Sierra,Monge,Perez-Garcia

, p. 5921 - 5931 (2007/10/02)

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