abstract |
A crystalline maleate salt of S-[2-[(l -Iminoethyl)aminojethyl]-2-methyl-L-cysteine is disclosed. The crystalline salt has absorption of less than one percent water by weight at 90% R.H. at 25 ~C, a melting point of 123 ~C, and aqueous solubility in excess of 230 mg ml-I. |