Get Chemdraw
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Instructions for Downloading ChemBioOffice/ChemBioDraw Software

1. Visit

2. Enter your Colby email address and hit submit.

3. Click "Continue" on Site License screen.

4. If you have an account with Cambridgesoft, then Login with your email address and password. If you do not yet have an account, you must set up a new membership by clicking the "Register" button and following the prompts. After setting up your account, Login with your email address and password.

5. For a Windows machine, download ChemBioOffice Ultra.
    For Mac, download ChemBioDraw Ultra.

    For both Windows and Mac, wait to install this file.

6. Look in your colby email account for an email from "" containing serial/registration numbers for installation (you may have to look in your spam/junk folder). Once you have this information, open the downloaded file and follow instructions to complete the installation.

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