| 1 | 634-01-5 | ADENOSINE-2',3'-CYCLIC PHOSPHATE | C10H12N5O6P | 329.21 | 208-213°C | |
| 2 | 634-02-6 | guanosine cyclic 2',3'-(hydrogen phosphate) | C10H12N5O7P | 345.205341 | | |
| 3 | 634-029-0 | 2-(2-CARBOXYPHENYL)BENZOTHIAZOLE | C14H9NO2S | 255.29 | | |
| 4 | 634-03-7 | Phendimetrazine | C12H17NO | 191.27 | | |
| 5 | 634-08-2 | LEVOFACETOPERANE | C14H19NO2 | 233.30616 | | |
| 6 | 634-19-5 | THF | C13H12O | 184.23 | 81-82° (Beyerman); mp 41.5-42.5° (House) | |
| 7 | 634-20-8 | 2-Acetoxyphenylmethanediol diacetate | C13H14O6 | 266.25 | | |
| 8 | 634-21-9 | Ethyl Red PH Range 4.5 (Red) TO 6.5(Yellow) | C17H19N3O2 | 297.40 | | |
| 9 | 634-25-3 | OXIME | C8H11N2O6P | 262.16 | | |
| 10 | 634-27-5 | pyridoxal-5-phosphate semicarbazone | C9H13N4O6P | 304.2 | | |
| 11 | 634-35-5 | 1-ethylquinolinium iodide | C11H12IN | 285.12 | 158-160°C | almost transparency |
| 12 | 634-36-6 | 1,2,3-Trimethoxybenzene | C9H12O3 | 168.19 | 43-47 °C (lit.) | Insoluble in water. |
| 13 | 634-37-7 | 2-Methylquinoline-8-carboxylic acid | C11H9NO2 | 187.19 | | |
| 14 | 634-38-8 | 2-METHYL-QUINOLINE-4-CARBOXYLIC ACID | C11H9NO2 | 187.19 | 245-247°C | |
| 15 | 634-39-9 | 5-Quinolinecarboxylicacid,2-methyl-(8CI,9CI) | C11H9NO2 | 187.19 | | |
| 16 | 634-42-4 | N-1-naphthylbenzamide | C17H13NO | 247.29 | | |
| 17 | 634-43-5 | 1-(P-TOLUIDINO)NAPHTHALENE | C17H15N | 233.31 | 78 °C | |
| 18 | 634-47-9 | 2-chlorolepidine | C10H8ClN | 177.63 | 55-58°C(lit.) | |
| 19 | 634-50-4 | 3-[2-Hydroxy-2-(4-hydroxy-3,5-dimethyl-2-oxocyclohexyl)ethyl]glutarimide | C15H23NO5 | 297.35 | | |
| 20 | 634-51-5 | Peroxide, bis(2-fluorobenzoyl) | C14H8F2O4 | 278.2077264 | | |
| 21 | 634-54-8 | Ethanamine,N,N-diethyl-2-(2,4,6-trichlorophenoxy)- | C12H16Cl3NO | 296.62054 | | |
| 22 | 634-55-9 | Ethyl 2-cyanoacetoacetate | C7H9NO3 | 155.15 | | Not miscible or difficult to mix in water. |
| 23 | 634-56-0 | D-Arg-D-Pro-D-Pro-Gly-D-Phe-D-Ser-D-Pro-D-Phe-D-Arg-OH | C50H73N15O11 | 1060.21 | | |
| 24 | 634-60-6 | 2-Aminoresorcinol Hydrochloride | C6H8ClNO2 | 161.59 | | |
| 25 | 634-62-8 | HYDRAZINE TARTRATE | C4H10N2O6 | 182.13 | 182-183° | almost transparency |
| 26 | 634-63-9 | (2R,3R)-2,3-Dihydroxysuccinamide | C4H8N2O4 | 148.12 | | |
| 27 | 634-64-0 | Butanoic acid, 4-amino-2,3-dihydroxy-4-oxo- | C4H7NO5 | 149.1 | | |
| 28 | 634-65-1 | 2,4-dimethylresorcinol | C8H10O2 | 138.16 | 110℃ | |
| 29 | 634-66-2 | 1,2,3,4-Tetrachlorobenzene | C6H2Cl4 | 215.89 | 44 °C | 5.92mg/L(25 ºC) |
| 30 | 634-67-3 | 2,3,4-trichloroaniline | C6H4Cl3N | 196.46 | 65-67°C(lit.) | |
| 31 | 634-74-2 | D-Rhamnose | C6H12O5 | 164.16 | 120-160 °C | |
| 32 | 634-83-3 | 2,3,4,5-Tetrachloroaniline | C6H3Cl4N | 230.91 | 118 °C | |
| 33 | 634-85-5 | 2,3,5-TRICHLORO-1,4-BENZOQUINONE | C6HCl3O2 | 211.43 | | |
| 34 | 634-87-7 | 2,4,6-TRIAMINOTOLUENE TRIHYDROCHLORIDE | C7H14Cl3N3 | 246.57 | | |
| 35 | 634-89-9 | 1,2,3,5-tetrabromobenzene | C6H2Br4 | 393.7 | 99.5°C | |
| 36 | 634-90-2 | 1,2,3,5-Tetrachlorobenzene | C6H2Cl4 | 215.89 | 54.5°C | 4.016mg/L(25 ºC) |
| 37 | 634-91-3 | 3,4,5-Trichloroaniline | C6H4Cl3N | 196.46 | 97-99 °C (lit.) | Insoluble in water. |
| 38 | 634-92-4 | Benzene, 1,2,3,5-tetraiodo- | C6H2I4 | 581.7 | | |
| 39 | 634-93-5 | 2,4,6-Trichloroaniline | C6H4Cl3N | 196.46 | 73-75 °C (lit.) | <0.1 g/100 mL at 21.5 ºC |
| 40 | 634-94-6 | C03743 | C6H6O4 | 142.109 | | |
| 41 | 634-95-7 | 1,1-diethylurea | C5H12N2O | 116.16 | 69-71 °C (lit.) | |
| 42 | 634-97-9 | pyrrole-2-carboxylic acid | C5H5NO2 | 111.1 | 204-208 °C (dec.) (lit.) | |