| 1 | 24271-82-7 | 5,8-Quinazolinedione | 5,8-Quinazolinedione | C8H4N2O2
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| 2 | 147088-71-9 | PHTHALAZINE-5,8-DIONE | PHTHALAZINE-5,8-DIONE | C8H4N2O2
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| 3 | | Phenylene diisocyanate | Phenylene diisocyanate | C8H4N2O2
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| 4 | 4733-50-0 | 3,6-二羟基邻苯二甲腈 | 2,3-Dicyanohydroquinone | C8H4N2O2
| 腈;芳烃;化工;中间体;氰化物;医药原料;有机化工;精细化学品 | 中间体 |
| 5 | 104-49-4 | 对苯二异氰酸酯 | p-phenylene diisocyanate | C8H4N2O2
| 聚氨酯;中间体;医药、;异氰酸酯;有机砌块;有机原料;化工原料;有机化工原料;氰、异氰酸及衍生物 | |
| 6 | 123-61-5 | 1,3-苯二异氰酸酯 | 1,3-Phenylene Diisocyanate | C8H4N2O2
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| 7 | 1509042-96-9 | 6-isocyanato-1,3-benzoxazole | 6-isocyanato-1,3-benzoxazole | C8H4N2O2
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| 8 | 98556-63-9 | 3,3-Biisoxazole,5-ethynyl-(6CI) | 3,3-Biisoxazole,5-ethynyl-(6CI) | C8H4N2O2
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| 9 | 1261572-98-8 | 3-Cyano-4-hydroxyphenylisocyanate | 3-Cyano-4-hydroxyphenylisocyanate | C8H4N2O2
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| 10 | 120387-08-8 | Benzo[2,1-c:3,4-c]diisoxazole (9CI) | Benzo[2,1-c:3,4-c]diisoxazole (9CI) | C8H4N2O2
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| 11 | 172589-79-6 | 1,2-Dioxeto[3,4-b]quinoxaline (9CI) | 1,2-Dioxeto[3,4-b]quinoxaline (9CI) | C8H4N2O2
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| 12 | 3729-34-8 | 1,4-BENZENEDICARBONITRILE NN'-DIOXIDE | 1,4-BENZENEDICARBONITRILE NN'-DIOXIDE | C8H4N2O2
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| 13 | 630112-26-4 | Oxazolo[4,5-e][2,1]benzisoxazole (9CI) | Oxazolo[4,5-e][2,1]benzisoxazole (9CI) | C8H4N2O2
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| 14 | 300853-66-1 | 4,5-二羟基-1,2-苯二腈 | 4,5-Dihydroxy-1,2-benzenedicarbonitrile | C8H4N2O2
| 芳香衍生物;材料中间体 | |
| 15 | 184868-49-3 | 5-Isoxazolecarbonitrile,3-(2-furanyl)-(9CI) | 5-Isoxazolecarbonitrile,3-(2-furanyl)-(9CI) | C8H4N2O2
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| 16 | 201531-21-7 | 2-氧-2,3-二羟基苯并恶唑-5-甲腈 | 2-Oxo-2,3-dihydro-benzooxazole-5-carbonitrile | C8H4N2O2
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| 17 | 162035-85-0 | 1,2-Benzisoxazole-5-carbonitrile,2,3-dihydro-3-oxo-(9CI) | 1,2-Benzisoxazole-5-carbonitrile,2,3-dihydro-3-oxo-(9CI) | C8H4N2O2
| | |
| 18 | 503550-51-4 | Propanedinitrile, (3,4-dihydroxy-2,4-cyclopentadien-1-ylidene)- (9CI) | Propanedinitrile, (3,4-dihydroxy-2,4-cyclopentadien-1-ylidene)- (9CI) | C8H4N2O2
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