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124901-17-3

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124901-17-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 124901-17-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,4,9,0 and 1 respectively; the second part has 2 digits, 1 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 124901-17:
(8*1)+(7*2)+(6*4)+(5*9)+(4*0)+(3*1)+(2*1)+(1*7)=103
103 % 10 = 3
So 124901-17-3 is a valid CAS Registry Number.

124901-17-3Downstream Products

124901-17-3Relevant articles and documents

Synthesis of 2-(substituted methyl)-3,4-disubstituted pyrroles and their conversion into the corresponding porphyrins

Kinoshita,Tanaka,Nishimori,Dejima,Inomata

, p. 2660 - 2667 (2007/10/02)

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A New Synthesis of Porphyrins via Tetramerization of 2-(Hydroxymethyl)pyrroles

Ono, Noboru,Maruyama, Kazuhiro

, p. 1237 - 1240 (2007/10/02)

Acid catalyzed cyclization of 2-(hydroxymethyl)pyrroles with electron-donating substituents at the β-position gives a mixture of four isomers of porphyrins (type I-IV) in the homogeneous reaction.The isomerization during cyclization can be minimized in th

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