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Periodic Table/Compounds/B 506

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© Melvin Olsson 2025–2026
Data: IAEA & PubChem

B 506

C₇H₁₅Cl₂N₂O₂P·261.080 g/mol·CID 98420

IUPAC: N,N-bis(2-chloroethyl)-5-methyl-2-oxo-1,3,2lambda5-oxazaphospholidin-2-amine

Also known as: NSC 126577, BRN 0980768, 7327-14-2, 2-(Bis(2-chloroethyl)amino)-5-methyl-1,3,2-oxazaphospholidine 2-oxide, 1,3,2-Oxazaphospholidin-2-amine, N,N-bis(2-chloroethyl)-5-methyl-, 2-oxide (+9 more)

2D structure of B 506

Molecular Structure

Molecular Propertiesmass · H-bonds · stereo

Molecular Weight

261.080g/mol

Exact Mass

260.024820Da

Monoisotopic Mass

260.024820Da

XLogP

0.8

Polar Surface Area

41.6Ų

Complexity

224

Formal Charge

0

H-Bond Donors

1

H-Bond Acceptors

4

Rotatable Bonds

5

Heavy Atoms

14

Stereo Centers

0

Bond Stereo

0

Drug-Likeness (Lipinski's Rule of Five)

✓ 261.1 g/mol
MW ≤ 500
✓ 0.8
LogP ≤ 5
✓ 1
H-bond donors ≤ 5
✓ 4
H-bond acceptors ≤ 10

Passes all rules — good oral bioavailability predicted

Chemical IdentifiersSMILES · InChI

InChI

InChI=1S/C7H15Cl2N2O2P/c1-7-6-10-14(12,13-7)11(4-2-8)5-3-9/h7H,2-6H2,1H3,(H,10,12)

Isomers8 compounds with formula C₇H₁₅Cl₂N₂O₂P

2D structure of N,N-bis(2-chloroethyl)-2-oxo-1,3,2lambda5-oxazaphosphinan-2-amine

N,N-bis(2-chloroethyl)-2-oxo-1,3,2lambda5-oxazaphosphinan-2-amine

CID 2907 · 261.1 g/mol

2D structure of N,3-bis(2-chloroethyl)-2-oxo-1,3,2lambda5-oxazaphosphinan-2-amine

N,3-bis(2-chloroethyl)-2-oxo-1,3,2lambda5-oxazaphosphinan-2-amine

CID 3690 · 261.1 g/mol

2D structure of (2R)-N,N-bis(2-chloroethyl)-2-oxo-1,3,2lambda5-oxazaphosphinan-2-amine

(2R)-N,N-bis(2-chloroethyl)-2-oxo-1,3,2lambda5-oxazaphosphinan-2-amine

CID 9554282 · 261.1 g/mol

2D structure of (2S)-N,3-bis(2-chloroethyl)-2-oxo-1,3,2lambda5-oxazaphosphinan-2-amine

(2S)-N,3-bis(2-chloroethyl)-2-oxo-1,3,2lambda5-oxazaphosphinan-2-amine

CID 9588019 · 261.1 g/mol

2D structure of (2R)-N,3-bis(2-chloroethyl)-2-oxo-1,3,2lambda5-oxazaphosphinan-2-amine

(2R)-N,3-bis(2-chloroethyl)-2-oxo-1,3,2lambda5-oxazaphosphinan-2-amine

CID 9588020 · 261.1 g/mol

2D structure of (2S)-N,N-bis(2-chloroethyl)-2-oxo-1,3,2lambda5-oxazaphosphinan-2-amine

(2S)-N,N-bis(2-chloroethyl)-2-oxo-1,3,2lambda5-oxazaphosphinan-2-amine

CID 9554281 · 261.1 g/mol

2D structure of N,N-bis(2-chloroethyl)-5,5-dideuterio-2-oxo-1,3,2lambda5-oxazaphosphinan-2-amine

N,N-bis(2-chloroethyl)-5,5-dideuterio-2-oxo-1,3,2lambda5-oxazaphosphinan-2-amine

CID 84061 · 263.1 g/mol

2D structure of 3-(2-chloroethyl)-2-(2-chloroethylamino)-1,3,2-oxazaphosphinan-4-ol

3-(2-chloroethyl)-2-(2-chloroethylamino)-1,3,2-oxazaphosphinan-4-ol

CID 115317 · 261.1 g/mol

External Resources

PubChem ↗Wikipedia ↗