| post date: | dec 26,2021 |
| expiry date: | jun 24,2022 |
| detailed description: |
cas no. :90-31-3
m.w.: 288.7 formula：c10h9n2o4scl appearance：light yellow crystals purity(as dry)：99% min. water content：15% max. application：dyes intermediates, mainly used to produce acid yellow 29, 34, 68, 200 etc. packing：25kg net bag |
| cas registry number: | 90-31-3 |
| synonyms: | ;2-(3-chlorophenyl)-2,4-dihydro-5-methyl-3h-pyrazol-3-one;1-(3'-chlorophenyl)-3-methyl-5-pyrazolone;2-(3-chlorophenyl)-5-methyl-2,4-dihydro-3h-pyrazol-3-one;1-(3-chlorophenyl)-3-methyl-4,5-dihydro-1h-pyrazol-5-one;1-(3-chlorophenyl)-3-methyl-5-pyrazolone; |
| molecular formula: | c10h9cln2o |
| molecular weight: | 208.6443 |
| molecular structure: | 
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| safety description: | s22:do not inhale dust.; s24/25:avoid contact with skin and eyes.; |
