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9H-Xanthene, 2,7-dibromo-9-chloro-9-phenyl- is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

112489-40-4

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112489-40-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 112489-40-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,2,4,8 and 9 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 112489-40:
(8*1)+(7*1)+(6*2)+(5*4)+(4*8)+(3*9)+(2*4)+(1*0)=114
114 % 10 = 4
So 112489-40-4 is a valid CAS Registry Number.

112489-40-4Relevant articles and documents

SYNTHESIS OF D-myo-INOSYTOL 1,4,5-TRIPHOSPHATE

Reese, Colin B.,Ward, John G.

, p. 2309 - 2312 (1987)

The conversion of myo-inositol into the ammonium salts both of racemic and enantiomerically pure D-myo-inositol 1,4,5-triphosphate (6) is described.The n.m.r. spectroscopic properties and biological activity of synthetic and naturally-isolated (6) are virtually identical.

Some Substituted 9-Phenylxanthen-9-yl Protecting Groups

Gaffney, Piers R. J.,Changsheng, Liu,Rao, M. Vaman,Reese, Colin B.,Ward, John G.

, p. 1355 - 1360 (2007/10/02)

Xanthen-9-one 8 was converted into 9-(4-methoxyphenyl)-, 9-(4-methylphenyl)- and 9--xanthen-9-ol (10; R1 = OMe, R2 = H, 10; R1 = Me, R2 = H, and 10; R1 = H, R2 = CF3, respectively).The corresponding 5'-protected thymidine derivatives (13; R1 = OMe, R2 = H, 13; R1 = Me, R2 = H and 13; R1 = H, R2 = CF3) were obtained in satisfactory yields from thymidine 12 and the appropriate 9-chloro compounds (11; R1 = OMe, R2 = H, 11; R1 = Me, R2 = H and 11; R1 = H, R2 = CF3).In the same way, 2,7-dibromoxanthen-9-one 14 was converted into two 9-aryl-2,7-dibromoxanthen-9-ols ( compounds 15a and 15b).Reaction between thymidine 12 and the corresponding 9-chlorocompounds gave the 5'-protected thymidine derivatives 16a and 16b, also in satisfactory yields.The rates of acid-catalysed cleavage of the above five 5'-protected thymidine derivatives (13; R1 = OMe, R2 = H, 13; R1 = Me, R2 = H and 13; R1 = H, R2 = CF3), 16a and 16b were compared with those of 5'-O-(9-phenylxanthen-9-yl)thymidine 13; R1 = R2 = H and 5'-O-(triphenylmethyl)thymidine 3a; B = thymin-1-yl under the same conditions.

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