Table 5.18.

A list of known Novichok agents attributed to the GosNIIOKhT research program and their status^a

Agent	Type	Current status
Substance-33	Unitary	Estimated 15,000 tons produced Designated as chemical weapon
A-230	Unitary	Experimental quantities produced Designated as chemical weapon (1990)
A-232	Unitary	Experimental agent Not designated, or officially approved
A-234	Unitary analog of A-232	Unknown
Novichok-5	Binary analog of A-232 8× more effective than VX	Experimental agent Designated as chemical weapon (1989)
Novichok-7	Binary analog of A-234 10× more effective than soman	Experimental agent Not designated
Novichok-#	Binary analog of Substance-33	Adopted as chemical weapon (1990)

^aVX = Venom X (Cieslak and Henretig 2003)