Features exported to SKC format
Atom features
The following atom features are exported from Marvin to the SKC file format:
| Marvin | ISIS/Draw | Comment | 
| General properties | ||
| Type |      | 
 | 
| Stereo Reaction |      | 
 | 
| Stereo Enhanced |      | exported as Attached Data | 
| Charge |      | 
 | 
| Valence |      | 
 | 
| Radical |      | 
 | 
| Isotope |      | 
 | 
| Map |      | 
 | 
| Alias |      | 
 | 
| Pseudo |      | 
 | 
| SMARTS |      | 
 | 
| Value |      | 
 | 
| Query properties | ||
| Total number of attached hydrogens |      | 
 | 
| Valence, Sum of bond orders |      | 
 | 
| Number of connections |      | 
 | 
| Ring count |      | Not supported by ISIS/Draw | 
| Smallest ring size |      | 
 | 
| Ring bond count |      | 
 | 
| Substitution count |      | 
 | 
| Number of implicit hydrogens |      | 
 | 
| Number of explicit connections |      | 
 | 
| Unsaturated atom |      | 
 | 
| Atom Label | ||
| Font, style |      | 
 | 
| Scale |      | 
 | 
| Atom color |      | 
 | 
Bond features
The following bond features from Marvin are exported to the SKC file format:
| Marvin | ISIS/Draw | Comment | 
| Bond type | ||
| Single |      | 
 | 
| Double |      | 
 | 
| Triple |      | 
 | 
| Aromatic |      | 
 | 
| Single Up |      | Up | 
| Single Down |      | Down | 
| Single Up or Down |      | Either | 
| Double Cis or Trans |      | Dbl Either | 
| Double C/T or unspec |      | Double | 
| Single or Double |      | Single/Double | 
| Double or Aromatic |      | Double/Aromatic | 
| Any |      | 
 | 
| Coordinate |      | 
 | 
| Reacting center | ||
| Center |      | 
 | 
| Make/Break |      | 
 | 
| Change |      | 
 | 
| Make/Change |      | 
 | 
| Not Center |      | 
 | 
| Topology | ||
| In Ring |      | 
 | 
| In Chain |      | 
 | 
| Other | ||
| Stereo search |      | 
 | 
| Thickness |      | 
 | 
| Color |      | 
 | 
| Crossed bond |      | 
 | 
Reaction features
The following reaction features of Marvin are exported to the SKC file format:
| Marvin | ISIS/Draw | Comment | 
| Reaction arrow |      | some types of reaction arrows are converted to single reaction arrows | 
| Reactant |      | 
 | 
| Product |      | 
 | 
| Agent |      | 
 | 
| Multiple step reaction with graphic arrows |      | converted to Multiple step reaction | 
| Reaction and R-group combination |      | 
 | 
| Reaction and S-group combination |      | 
 | 
Group features
The following groups are exported to the SKC file format as:
| Marvin | ISIS/Draw | Comment | 
| S-groups | ||
| Anypolymer (anyp) |      | Any polymer type | 
| Component (c) |      | Component type | 
| Copolymer (co) |      | Copolymer type | 
| Copolymer, alternating (alt) |      | Copolymer type with alternating polymer subtype | 
| Copolymer, block (blk) |      | Copolymer type with block polymer subtype | 
| Copolymer, random (ran) |      | Copolymer type with random polymer subtype | 
| Crosslink (xl) |      | Crosslink type | 
| Generic () |      | Generic type | 
| Graft (grf) |      | Graft type | 
| Mer (mer) |      | Mer type | 
| Mixture, ordered (f) |      | Mixture type | 
| Mixture, unordered (mix) |      | Mixture type | 
| Modification (mod) |      | Modification type | 
| Monomer (mon) |      | Monomer type | 
| Multiple S-Group (#) |      | Multiple group type | 
| Repeating unit with repetition ranges(e.g.2,4-6) |      | 
 | 
| SRU polymer(n) |      | Label and bracket type supported, repeat pattern not yet supported | 
| Superatom S-group |      | 
 | 
| Attached data |      | 
 | 
| R-groups | ||
| R-group |      | 
 | 
| R-Logic |      | 
 | 
Note: head-to-tail with flip (ht,f) and head-to-head with flip (hh,f) attributes are not handled because they are not supported by Symyx3.1 and ISIS/Draw.
Graphical objects
Rounded rectangle, ellipse and graphical bracket objects are supported, except for the line style. Text attributes are also exported.
 
         
        