 | 1,4,5,8-Naphthalenetetracarboxylic dianhydride | CAS #:81-30-1 | | | An pharmatech co ltd. | Tel:86(21)68097365 More |
| | 1,4,5,8-Naphthalenetetracarboxylic dianhydride | CAS #:81-30-1 | | | Suzhou xinkai bio-medical technology co., ltd. | Tel:+86-0512-82216625 More |
| | 1,4,5,8-Naphthalenetetracarboxylic dianhydride | CAS #:81-30-1 | | | Shanghai fwd chemicals limited | Tel:+86-21-54450828 More |
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