最近，日本厚生劳动省发布了两份更新通知，在 2011 年 3 月 31 日之前新公布的化学物质清单中增加了 3 种物质的CAS号，物质群的数量保持不变（7,413 种）。
新增物质信息如下：
| CAS RN | MITI No. | Chemical Substances Name | |
| 1328 | 70624-18-9 | 7-2170 | Polycondensation products of 2,4-dichloro-6-(1,1,3,3-tetramethylbutylamino)-1,3,5-triazine / N,N'-bis(2,2,6,6-tetramethyl-4-piperidyl)hexamethylenediamine |
| 3221 | 26125-61-1 | 7-2384 | Polycondensation products of p-phenylenediamine / terephthaloyl dichloride (It is limited that a number-average molecular weight of the polymer is 1,000 or more and the polymer is insoluble in water, fat-soluble solvent, usual solvent, acid and alkali.) |
| 5216 |
125121-39-3 |
6-2534 |
Partial sodium salt of copolymer of acrylic acid with .alpha.-(3-methylbut-3-en-1-yl)-.omega.-hydroxypoly(n 5-150)(oxyethylene) (containing 1% or less of component having less than 1,000 of molecular weight) |
