TOTU

TOTU , with the CAS register number 136849-72-4 , is also known to us as o-[(ethoxycarbonyl)cyanomethylenamino]-n,n,n',n'-tetramethyluronium tetrafluoroborate , o-[(ethoxycarbonyl)-cyanomethyleneamino]-1,1,3,3-tetramethyluronium tetrafluoroborate , o-((ethoxycarbonyl)cyanomethyleneamino)-n,n,n',n'-tetramethyluronium bf4 , o-[(ethoxycarbonyl)cyanomethyleneamino]-n,n,n',n'-tetramethyluronium tetrafluoroborate , etc.

Some characteristics of this kind of chemical are as the listing: (1)#H bond acceptors:  7 ; (2)#Freely Rotating Bonds:  5  ; (3)Polar Surface Area:  77.93 ; (4)Melting point  141-147 °C .

This is a white to yellowish crystalline powder and it is sensitive to moisture. And This chemical belongs to the product categories of coupling reagent.

Being an irritant chemical, it is irritant to eyes, respiratory system and skin and it may cause inflammation to the skin or other mucous membranes. Therefore, while using this chemical, we should be very cautious. The first important thing is to wear suitable protective clothing, suitable gloves and eye/face protection. But if in case of contact with eyes, rinse immediately with plenty of water and seek medical advice. If you need more safety information, you could also refer to the WGK Germany 3. As for its storage method, it should be stored with the temperature of 2-8°C.

In addition, you could also refer to the following data information to get the molecular structure：
SMILES: F[B-](F)(F)F.N#C/C(=N\O\C(=[N+](/C)C)N(C)C)C(=O)OCC
InChI: InChI=1/C10H17N4O3.BF4/c1-6-16-9(15)8(7-11)12-17-10(13(2)3)14(4)5;2-1(3,4)5/h6H2,1-5H3;/q+1;-1/b12-8+;
InChIKey: FPQVGDGSRVMNMR-MXZHIVQLBP