Cas 70672-08-1,fluorescein cation

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Check Digit Verification of cas no

The CAS Registry Mumber 70672-08-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,0,6,7 and 2 respectively; the second part has 2 digits, 0 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 70672-08:
(7*7)+(6*0)+(5*6)+(4*7)+(3*2)+(2*0)+(1*8)=121
121 % 10 = 1
So 70672-08-1 is a valid CAS Registry Number.

70672-08-1Upstream product

85209-52-5 semi-fluorescein radical

70672-08-1Downstream Products

85209-52-5 semi-fluorescein radical

70672-08-1Relevant articles and documents

Photooxidation von Leukofarbstoffen - IV. Photochemische Bildung und Reaktivitaet von Einelektronenreduktionsprodukten des Fluoreszeins

Langbein, H.,Friedrich, M.,Paetzold, R.

, p. 99 - 106 (2007/10/02)

The neutral radical H3F. is generated by photoreaction of fluorescein H3F+ with leucofluorescein H4F in acid solution: .The radical H3F. is characterized by UV/VIS- and ESR-spectroscopy.In absence of oxygen the system returns to the i

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CAS

70672-08-1