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112381-11-0

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112381-11-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 112381-11-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,2,3,8 and 1 respectively; the second part has 2 digits, 1 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 112381-11:
(8*1)+(7*1)+(6*2)+(5*3)+(4*8)+(3*1)+(2*1)+(1*1)=80
80 % 10 = 0
So 112381-11-0 is a valid CAS Registry Number.

112381-11-0Relevant articles and documents

Synthesis of ethyl pyrrole-2-carboxylates: A regioselective cyclization of enaminones under knorr-type conditions

Elghamry, Ibrahim

, p. 897 - 902 (2002)

A regioselective formation of ethyl pyrrole-2-carboxylates 4 and 5 is effected by reductive condensation of enaminones 1a-f and ethyl 2-oximinoacetoacetate 2. The structures of the products have been delineated by spectroscopic methods.

Linearly -π- extended porphyrins: Synthesis of novel tetrabenzoylporphyrins

Elghamry, Ibrahim,Tietze, Lutz F.

, p. 503 - 508 (2007/10/03)

The π-extended porphyrins 11a - c with a λmax = 644, 643 and 639 nm were synthesized by an acid catalysed reaction of the dipyrrolylmethane 10 with different aldehydes followed by oxidation with 2,3-dichloro-5,6-dicyano-1,4-quinone (DDQ). In a

A Simple Synthesis of Pyrroles

Cohnen, Erich,Dewald, Renate

, p. 566 - 568 (2007/10/02)

A new, convenient procedure is described for the synthesis of pyrroles by cyclocondensation of 2-amino-1-alkenyl ketones with α-aminocarbonyl compounds.

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