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Linagliptin

English alias：	8-[(3R)-3-Amino-1-piperidinyl]-7-(2-butynyl)-3,7-dihydro-3-methyl-1-[(4-methyl-2-quinazolinyl)methyl]-1H-purine-2,6-dione; 8-[(3R)-3-aminopiperidin-1-yl]-7-(but-2-yn-1-yl)-3-methyl-1-[(4-methylquinazolin-2-yl)methyl]-3,7-dihydro-1H-purine-2,6-dione; 1h-purine-2,6-dione, 8-[(3r)-3-amino-1-piperidinyl]-7-(2-butyn-1-yl)-3,7-dihydro-3-methyl-1-[(4-methyl-2-quinazolinyl)methyl]-
CAS NO. ：	668270-12-0
Molecular formula：	C₂₅H₂₈N₈O₂
Molecular weight：	472.5422
InChI：	InChI=1/C25H28N8O2/c1-4-5-13-32-21-22(29-24(32)31-12-8-9-17(26)14-31)30(3)25(35)33(23(21)34)15-20-27-16(2)18-10-6-7-11-19(18)28-20/h6-7,10-11,17H,8-9,12-15,26H2,1-3H3/t17-/m1/s1
Molecular structure：
Density：	1.398g/cm³
Melting point：	202℃
Boiling point：	661.189°C at 760 mmHg
Flash point：	353.675°C
Vapor pressure：	0mmHg at 25°C

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