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1417799-43-9

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1417799-43-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1417799-43-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,4,1,7,7,9 and 9 respectively; the second part has 2 digits, 4 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 1417799-43:
(9*1)+(8*4)+(7*1)+(6*7)+(5*7)+(4*9)+(3*9)+(2*4)+(1*3)=199
199 % 10 = 9
So 1417799-43-9 is a valid CAS Registry Number.

1417799-43-9Downstream Products

1417799-43-9Relevant articles and documents

An approach to pyrazoline-fused chlorins by dipolar [3 + 2]-cycloaddition of iminonitriles to Meso-Tetrakis(pentafluorophenyl)porphyrin: Synthesis of new PDT photosensitizers

Wyrebek, Przemyslaw,Ostrowski, Stanislaw

, p. 1167 - 1174,8 (2020/09/16)

Meso-Tetrakis(pentafluorophenyl)porphyrin reacts at higher temperature with unstable iminonitriles (RC≡N+-N--Ar), affording pyrazoline-fused chlorins, according to dipolar [3 + 2]-cycloaddition pathway. The respective iminonitriles were in situ generated from the corresponding functionalized α-halogenohydrazine derivatives by 1,3-elimination of HX in the presence of base (NEt3, DABCO). This method allows synthesis of very attractive moieties which may be of potential use as sensitizers in photodynamic therapy (PDT).

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