25-038

Di-2(3H)-benzoxazolone ketone

C15H8N2O5

MW 296.24

mp >300oC

Pale pink crystalline solid

Soluble in DMSO

25-016

2,4-Dichloro-6,7-dimethoxyquinozoline, 98%

C10H8Cl2N2O2

MW 259.09

mp 162-164oC

Pale yellow crystalline solid

Soluble in dichloromethane, methanol

25-017

2,3-Dichloro-6,7-dinitroquinoxaline, 98%

C8H2Cl2N4O4

MW 289.05

mp 218-220oC

Pale yellow crystalline solid

Soluble in chloroform, acetone


19-282

\

3’,5’-Dichloro-2’-hydroxypropiophenone

C9H8Cl2O2

MW  219.07

mp 116-117oC

White powder

Soluble in chloroform

25-018

3,4-Dihydro-3-oxo-2H[1,4]benzothiazin-2yl acetic acid, 98%

C10H9NO3S

MW 223.26

mp 200-202oC

White crystalline solid

Soluble in methanol

25-019

3,4-Dihydro-3-oxo-2H[1,4]benzoxazin-2yl acetic acid, 98%

C10H9NO4

MW 207.19

mp 175-177oC

Pale yellow crystalline solid

Soluble in methanol

D-007

2,5-Dihydroxy-1,4-benzoquinone   [615-94-1]

C6H4O4

MW 140.10

mp 219-220oC

Pure

Has been used for determination of Th, Sc, and Zr.

18-501

2',4'-Dihydroxypropiophenone   [5792-36-9]

C9H10O3

MW 166.18

mp 95-98oC

Irritant

22-001

 

2,6-Dimethoxy-1,4-benzoquinone   [530-55-2]

C8H8O4

MW 168.15

mp 255-256oC

Yellow crystals

Soluble in methanol or acetone

19-072

4,6-Dimethyl-3,7-di(4’-chlorophenyl)-2,8-dioxo-

2H,8H-benzo(1,2-b: 5,4-b’) dipyran

C26H16Cl2O4

MW 463.33              mp >300oC

White powder

Soluble in excess of

Ethyl acetate:Chloroform (1:1)


19-074

4,6-Dimethyl-3,7-di(4’-methoxy phenyl)-2,8-dioxo-

2H,8H-benzo(1,2-b: 5,4-b’)dipyran

C28H22O6

MW 454.48

mp 260-263oC

Light yellow powder

Soluble in chloroform

19-073

4,6-Dimethyl-3,7-diphenyl-2,8-dioxo-2H,8H-benzo(1,2-b: 5,4-b’) dipyran

C26H18O4

MW 394.43

mp 272-273oC

Cream color powder

Soluble in chloroform