Also known as DACH, 1,2-cyclohexanediamine, cyclohexane-1,2-diamine
1,2-Diaminocyclohexane (DACH) is an organic compound with the formula (CH2)4(CHNH2)2. It is a mixture of three stereoisomers: cis-1,2-diaminocyclohexane and both enantiomers of trans-1,2-diaminocyclohexane. The mixture is a colorless, corrosive liquid, although older samples can appear yellow. It is often called DCH-99 and also DACH.
1,2-Diaminocyclohexane (DACH) is an organic compound with the formula (CH2)4(CHNH2)2. It is a mixture of three stereoisomers: cis-1,2-diaminocyclohexane and both enantiomers of trans-1,2-diaminocyclohexane. The mixture is a colorless, corrosive liquid, although older samples can appear yellow. It is often called DCH-99 and also DACH.
== Manufacture == The product is available commercially, manufactured by the hydrogenation of o-phenylenediamine. The two trans enantiomers can be resolved by conversion to diastereomeric salts of various chiral acids.
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).