| CAS编号 | 中文名 | 英文名 | 分子式 | 分子量 | 熔点 | 沸点 |
| 638-16-4 | 2,4,6-巯基-S-三嗪 | 1,3,5-Triazine-2,4,6(1H,3H,5H)-trithione | C3H3N3S3 | 177.25 | 300℃ | |
| 638-17-5 | (2α,4α,6α)-2,4,6-三甲基-4H-1,3,5-二噻嗪 | 3,5-Dithiazine, dihydro-2,4,6-trimethyl-, (2.alpha.,4.alpha.,6.alpha.)-4H-1 | C6H13NS2 | | | |
| 638-18-6 | 3-羟基戊二酸 | 3-hydroxypentanedioic acid | | | | |
| 638-21-1 | 苯基膦 | phenyl-phosphin | C6H7P | 110.09 | | |
| 638-23-3 | 羧甲司坦 | (l)-2-amino-3-(carboxymethylthio)propionic acid | C5H9NO4S | 179.21 | 205-207℃ | |
| 638-25-5 | 辛酸戊酯 | Octanoic acid, pentyl ester | C13H26O2 | 214.34 | | |
| 638-26-6 | | 10-hydroxyoctadecanoic acid | | | | |
| 638-28-8 | | 2-chloro-hexan | C6H13Cl | 120.62 | | |
| 638-29-9 | 正戊酰氯 | pentanoyl chloride | C5H9ClO | 120.58 | | 125-127℃ |
| 638-32-4 | 琥珀酰胺酸 | succinamic acid | C4H7NO3 | 117.10 | 153-157℃ | |
| 638-36-8 | | phytane | C20H42 | 282.55 | | 69℃(0.00 |
| 638-37-9 | 丁二醛 | butanedial | C4H6O2 | 86.09 | | |
| 638-38-0 | 乙酸锰 | Manganese acetate | C2H4O2·1/2Mn | | | |
| 638-39-1 | | tin(ii) acetate | C4H6O4Sn | 236.77 | 181-3℃ | 155℃(0.1 |
| 638-41-5 | 氯甲酸正戊酯 | amyl chloroformate | C6H11ClO2 | 150.60 | | |
| 638-44-8 | | n,n-dithiodiethylenedi-acetamid | | | | |
| 638-45-9 | 1-碘已烷 | 1-iodo-hexan | C6H13I | 212.07 | | 179-180℃ |
| 638-46-0 | N-丁基乙基硫醚 | n-Butyl Ethyl Sulfide | C6H14S | 118.24 | | |
| 638-49-3 | 甲酸戊酯 | Formic acid, pentyl ester | C6H12O2 | 116.16 | | |
| 638-51-7 | | nitrous acid hexyl ester | C6H13NO2 | 131.17 | | |
| 638-53-9 | 十三(烷)酸 | Tridecanoic acid | C13H26O2 | 214.34 | 41-42℃ | 236℃(100 |
| 638-56-2 | | ether, bis(2-(2-chloroethoxy)ethyl) | C8H16Cl2O3 | 231.11 | | |
| 638-58-4 | | tetradecanamide | C14H29NO | 227.39 | 105-107℃ | |
| 638-59-5 | | 1-tetradecanol, acetate | C16H32O2 | 256.42 | | |
| 638-60-8 | | 2-tetradecyne | C14H26 | 194.36 | | |
| 638-64-2 | | stearic acid-carboxy-14c | C18H36O2 | 284.48 | | |
| 638-65-3 | | stearonitrile | C18H35N | 265.48 | 38-40℃ | 274℃(100 |
| 638-66-4 | | Octadecanal | C18H36O | 268.48 | | |
| 638-67-5 | 二十三烷 | Tricosane | C23H48 | 324.63 | 47-50℃ | 198℃(3 t |
| 638-68-6 | 三十烷 | Triacontane | C30H62 | 422.81 | 65-67℃ | 455℃ |
| 638-73-3 | | methane,chlorodiiodo- | CHClI2 | 302.28 | | |
| 638-79-9 | | 1,1,1,2,2,3,3,4,4,5,5-undecafluoro-5-iodo-pentan | | | | |
| 638-90-4 | | amboside | | | | |
| 638-94-8 | | 17-acetonide, 16-alpha-hydroxy-prednisolone-1 | | | | |
| 638-95-9 | | α-Amyrin | C30H50O | 426.72 | | |
| 6380-03-6 | | p-toluenesulfono-m-toluidide | | | | |
| 6380-05-8 | n-(2-氯苯基)-4-甲基苯磺酰胺 | n-(2-chlorophenyl)-4-methylbenzenesulfonamide | | | | |
| 6380-08-1 | | N-(4-AMINOPHENYL)-4-METHYLBENZENE-SULFONAMIDE | | | | |
| 6380-20-7 | | 1-isopropyl-3-methoxybenzene | | | | |
| 6380-21-8 | | 2-propenyl-pheno | | | | 230℃ |
| 6380-23-0 | | 4-ethenyl-1,2-dimethoxy-benzen | | | | |
| 6380-24-1 | | 2-dimethoxy-4-propenyl- (z)-benzen | C11H14O2 | 178.23 | | |
| 6380-28-5 | 香芹基乙酸 | acetic acid 5-isopropyl-2-methyl-phenyl ester | C12H16O2 | 192.25 | | |
| 6380-34-3 | | diiodophenyl-arsin | | | | |
| 6380-63-8 | | phthalic acid, diester with lactonitrile | | | | |
| 6380-71-8 | | 3-mercapto-propanoic aci dodecyl ester | | | | |
| 6380-73-0 | | alpha-(4-anilinophenylimino)-6-methoxy-o-cresol | | | | |
| 63800-01-1 | | pyridinoline | | | | |
| 63800-37-3 | 海泡石 | sepiolite (mg2h2(sio3)3.xh2o) | Mg2H2(SiO3)3·xH2O | | | |
| 63805-80-1 | | benzcoprine | | | | |
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