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Methyl 9-dimethylamino-2,2-di(4-dimethylaminophenyl)-2H-naphtho[1,2-b]pyran-5-carboxylate is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

263026-69-3

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263026-69-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 263026-69-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,6,3,0,2 and 6 respectively; the second part has 2 digits, 6 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 263026-69:
(8*2)+(7*6)+(6*3)+(5*0)+(4*2)+(3*6)+(2*6)+(1*9)=123
123 % 10 = 3
So 263026-69-3 is a valid CAS Registry Number.

263026-69-3Downstream Products

263026-69-3Relevant academic research and scientific papers

Grey coloring photochromic fused pyrans

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, (2008/06/13)

A photochromic grey coloring 2H-naphtho[1,2-b]pyran of formula (1) wherein R1is selected from mono-, di- or poly-substituted aryl groups, mono-, di- or poly-substituted naphthyl groups and mono-, di- or poly-substituted heteroaryl groups, wherein at least one substituent is a nitrogen containing group, including amino, C1-C20and C6-C20alkylamino, C1-C20and C6-C20dialkylamino, C2-C20dialkenylamino, C2-C20or C4-C20di(polyalkenyl)amino, arylamino, diarylamino, C1-C20alkylarylamino, tetra (C1-C10linear or branched alkyl) guanidino and cyclic-amino groups and at least one of R7and R9, which may be the same or different, is selected from C1-C20N alkylamino C1-C20N-alkylamido, C1-C20N,N-dialkylamido, amido, nitro, amino, C1-C20alkylamino, C1-C20dialkylamino, C2-C20dialkenylamino, C4-C20di(polyalkenyl)amino, arylamino, diarylamino, C1-C20alkylarylamino, or cyclicamino groups. The compounds may be combined with a polymeric host material such as plastic or glass to make a sunglass lens, an ophthalmic lens or a window. The compounds may also be included in an ink or a fuel.

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