The CAS register number of 2-Butenedioic acid(2Z)-, potassium salt (1:1) is 689-82-7. It also can be called as 2-Butenedioic acid (Z)-, monopotassiumsalt and the systematic name about this chemical is potassium (2Z)-3-carboxyprop-2-enoate. The molecular formula about this chemical is C₄H₃KO₄ and the molecular weight is 154.16.

Physical properties about 2-Butenedioic acid(2Z)-, potassium salt (1:1) are: (1)#H bond acceptors: 4; (2)#H bond donors: 2; (3)#Freely Rotating Bonds: 2; (4)Polar Surface Area: 77.43 Å².

When you are using this chemical, please be cautious about it as the following:
This chemical is irritating to eyes, respiratory system and skin. If you want to use it, wear suitable protective clothing. In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.

You can still convert the following datas into molecular structure:
(1)SMILES: [K+].[O-]C(=O)/C=C\C(O)=O
(2)InChI: InChI=1/C4H4O4.K/c5-3(6)1-2-4(7)8;/h1-2H,(H,5,6)(H,7,8);/q;+1/p-1/b2-1-
(3)InChIKey: QPMDWIOUHQWKHV-NTXAGKCLBT
(4)Std. InChI: InChI=1S/C4H4O4.K/c5-3(6)1-2-4(7)8;/h1-2H,(H,5,6)(H,7,8);/q;+1/p-1/b2-1-
(5)Std. InChIKey: QPMDWIOUHQWKHV-ODZAUARKSA-M