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C158H182N12O4 is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

138551-41-4

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138551-41-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 138551-41-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,8,5,5 and 1 respectively; the second part has 2 digits, 4 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 138551-41:
(8*1)+(7*3)+(6*8)+(5*5)+(4*5)+(3*1)+(2*4)+(1*1)=134
134 % 10 = 4
So 138551-41-4 is a valid CAS Registry Number.

138551-41-4Upstream product

138551-41-4Downstream Products

138551-41-4Relevant academic research and scientific papers

An Approach to Porphyrin-based Molecular Wires: Synthesis of a Bis(porphyrin)tetraone and its Conversion to a Linearly Conjugated Tetrakisporphyrin System

Crossley, Maxwell J.,Burn, Paul L.

, p. 1569 - 1571 (1991)

An approach to molecular wires based on quasi-one-dimensional linearly conjugated poly-porphyrin systems is outlined and a rationally designed synthesis of the tetrakisporphyrin 9, a strand some 65 Angstroem in length, via the bis(porphyrin)tetraone 2 is

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