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1443438-81-0

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1443438-81-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1443438-81-0 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,4,4,3,4,3 and 8 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1443438-81:
(9*1)+(8*4)+(7*4)+(6*3)+(5*4)+(4*3)+(3*8)+(2*8)+(1*1)=160
160 % 10 = 0
So 1443438-81-0 is a valid CAS Registry Number.

1443438-81-0Downstream Products

1443438-81-0Relevant articles and documents

Three-component reaction of N-isocyaniminotriphenylphosphorane (Ph 3PNNC), biacetyl, and a carboxylic acid in water

Jafari, Ali,Ramazani, Ali,Ahankar, Hamideh,Asiabi, Pegah Azimzadeh,Sadri, Fariba,Joo, Sang Woo

, p. 373 - 380 (2016/04/05)

Reaction of N-isocyaniminotriphenylphosphorane with biacetyl in the presence of a carboxylic acid in water proceeds smoothly at RT (20-26°C) and neutral conditions to afford sterically congested 1,3,4-oxadiazole derivatives in high yields. The reaction pr

The reaction of N -isocyaniminotriphenylphosphorane with biacetyl in the presence of (E) -cinnamic acids: Synthesis of fully substituted 1,3,4-oxadiazole derivatives via intramolecular aza -wittig reactions of in situ generated iminophosphoranes

Ramazani, Ali,Abdian, Behnaz,Nasrabadi, Fatemeh Zeinali,Rouhani, Morteza

, p. 642 - 648 (2013/07/26)

Reaction of N-isocyaniminotriphenylphosphorane with biacetyl in the presence of (E)-cinnamic acids proceeds smoothly at room temperature and under neutral conditions to afford sterically congested 1,3,4-oxadiazole derivatives in high yields. The reaction

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