Rpcnu with CAS register number of 55102-43-7 is commonly named as X-Pcnu ; ICIG 1164 ; CHEBI:110926 ; CID316857 ; NSC245431 ; NSC279193 ; Urea, N-(2-chloroethyl)-N-nitroso-N'-(2,3,4-tri-O-acetyl-.beta.-D-xylopyranosyl)- ; Urea, N-(2-chloroethyl)-N-nitroso-N'-(2,3,4-tri-O-acetyl-D-ribopyranosyl)- ; 3,5-bis(acetyloxy)-2-({[(2-chloroethyl)(nitroso)amino]carbonyl}amino)tetrahydro-2H-pyran-4-yl acetate ,and so on.
IUPAC Name: [3,5-Diacetyloxy-2-[[2-chloroethyl(nitroso)carbamoyl]amino]oxan-4-yl] acetate
CAS: 55102-43-7
Molecular Formula:  C₁₄H₂₀ClN₃O₉
Molecular Weight: 409.7763
Molecular structure:
ACD/LogD (pH 5.5):  1.42 
ACD/LogD (pH 7.4):  1.31 
ACD/BCF (pH 5.5):  7 
ACD/BCF (pH 7.4):  5.45 
ACD/KOC (pH 5.5):  139.98 
ACD/KOC (pH 7.4):  109.07 
H bond acceptors:  12 
H bond donors:  1 
Freely Rotating Bonds:  10 
Index of Refraction:  1.572 
Molar Refractivity:  88.44 cm³ 
Molar Volume:  268.7 cm³ 
Polarizability:  35.06×10^-24cm³ 
Surface Tension:  53 dyne/cm 
Density:  1.52 g/cm³ 

 Rpcnu (CAS No.55102-43-7) is usually used as chemical reagent.

 Rpcnu (CAS No.55102-43-7) is poisonous by intraperitoneal route. Human mutation data reported. Many N-nitroso compounds are carcinogens. When heated to decomposition it emits toxic fumes of Cl⁻ and NO_x.