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497968-93-1

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497968-93-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 497968-93-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,9,7,9,6 and 8 respectively; the second part has 2 digits, 9 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 497968-93:
(8*4)+(7*9)+(6*7)+(5*9)+(4*6)+(3*8)+(2*9)+(1*3)=251
251 % 10 = 1
So 497968-93-1 is a valid CAS Registry Number.

497968-93-1Relevant articles and documents

Fluorescent switches with high selectivity towards sodium ions: Correlation of ion-induced conformation switching with fluorescence function

De Silva, A. Prasanna,Gunaratne, H. Q. Nimal,Gunnlaugsson, Thorfinnur,Nieuwenhuizen, Mark

, p. 1967 - 1968 (1996)

Diazacoronand 2 undergoes drastic conformational switching upon binding sodium ions as demonstrated by solution- and solid-state studies, which permit the design of efficient fluorescent PET (photoinduced electron transfer) switches 3a,b.

CYTOSOLIC FLUORESCENT ION INDICATORS

-

, (2012/04/10)

Novel fluorophores for fluorescent ion indicators incorporate water-solubilizing functional groups. These fluorophores enable visible-wavelength analysis of ion concentrations with chelators that are insoluble or poorly soluble in water. A green version of the fluorophore comprises a putative fluorescein with carboxylate appendages. An orange version of the fluorophore comprises a putative rhodamine, also with carboxylate appendages. Attaching the fluorophore to a 12-crown-4, a 15-crown-5, a 18-crown-6, a 21-crown-7, or a 24-crown-8 produces lithium, sodium, potassium, rubidium, and cesium indicator families, respectively. Attaching the fluorophore to diaza [1,1,1], [1,1,2], [1,2,2], [2,2,2], [2,2,3], [2,3,3], or [3,3,3] cryptands produces more selective lithium, sodium, potassium, rubidium, and cesium indicator families, respectively. Attaching the fluorophore to BAPTA, APTRA, or half- BAPTA or their analogs produces new calcium, magnesium, and other metal ions indicator families that strongly resist leakage from the cell.

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