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1239986-71-0

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1239986-71-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1239986-71-0 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,3,9,9,8 and 6 respectively; the second part has 2 digits, 7 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1239986-71:
(9*1)+(8*2)+(7*3)+(6*9)+(5*9)+(4*8)+(3*6)+(2*7)+(1*1)=210
210 % 10 = 0
So 1239986-71-0 is a valid CAS Registry Number.

1239986-71-0Downstream Products

1239986-71-0Relevant articles and documents

A rhodamine-based dual chemosensor for the visual detection of copper and the ratiometric fluorescent detection of vanadium

Huo, Fang-Jun,Su, Jing,Sun, Yuan-Qiang,Yin, Cai-Xia,Tong, Hong-Bo,Nie, Zong-Xiu

, p. 50 - 55 (2010)

The optical properties of a novel, rhodamine-based derivative, synthesized by reacting rhodamine hydrazide and 5-chlorosalicylaldehyde in ethanol, were investigated in methanol:HEPES solution. The novel sensor displayed selectivity for Cu2+, as evidenced by a colourless to dark red colour change, which was characterized using UV-visible spectroscopy and which also allowed visual detection of Cu2+. In contrast, selectivity towards VO2+ was determined from changes in the emission spectra in the nanomolar range. This represents the first reported rhodamine-based sensor capable of detecting both Cu2+ and VO2+ using two different modes. Crown Copyright

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