KingDraw

KingDraw App is a chemical drawing editor that allows users to sketch molecules and reactions as well as organic chemistry objects and pathways.A good idea can change the world. KingDraw will record all your inspirations. Just enjoy creation. KingDraw, professional structural formula tool, creates a special work station for chemists!
Main Features：
Top-speed drawing
Many powerful functions, like real time 3D modeling, conversion between IUPAC names and chemical structures, structural formula searching, chemical property analysis, intelligent gesture drawing, intelligent beautifying, etc.
Multi-terminal synchronization
Get and share your files from your device, PC, or any other device you use. No matter where you are, use the KingDraw mobile app to keep you productive and work together. KingDraw Cloud makes it easy to handle your files when you're out.
Multi-format compatibility
Easily saved as several file formats commonly used in chemical drawing softwares, for example cdx., mol., SMILES, etc. It also supports drawing standards like ACS 1996.

[Feedback]
If you have more questions, pls feel free to contact us on Twitter @KingDraw_chem
[LICENSED APPLICATION END USER LICENSE AGREEMENT]
https://www.apple.com/legal/internet-services/itunes/dev/stdeula/