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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HCID 6539Generated: October 26, 2026

Dibutyl butylphosphonate

DBBP · tc44 · nsc2666 · DIBUTYL BUTYLPHOSPHONATE · dibutylbutanephosphonate · Dibutyl butanephosphonate · Butylphosphonic acid dibutyl · Dibutoxybutylphosphine oxide

https://huagongshe.com/en/chemical/6539

Dibutyl butylphosphonate molecular structure

Identifiers & Physical Properties

CAS No.78-46-6
Molecular formulaC12H27O3P
Average molar mass250.31 g/mol
Monoisotopic mass250.16978135 g/mol
SMILESCCCCOP(=O)(CCCC)OCCCC
InChIKeyJPGXOMADPRULAC-UHFFFAOYSA-N
PubChem CID6539
EC No.201-119-2
DTXSIDDTXSID6052536

Chemical & Physical Properties

XLogP3.2
Topological polar surface area35.5
Hydrogen bond donors0
Hydrogen bond acceptors3
Rotatable bonds11
Heavy atoms16
Formal charge0
Complexity181
Chemical classesOther Classes -> Organophosphates, Other
SpringerMaterials PropertiesChemical shift
OdorMILD
Density0.948 @ 20 °C/4 °C0.948 @ 20°C0.946 g/mL at 25 °C(lit.)
Color/FormCOLORLESS LIQ
SolubilityINSOL IN WATERMISCIBLE WITH MOST COMMON ORG SOLVENTS0.5g/L(25 ºC)
Flash point310 °F OC>230 °F
Boiling point127-128 °C @ 2.5 MM HG283 °C(lit.)
DecompositionWHEN HEATED TO DECOMP, IT EMITS HIGHLY TOXIC FUMES OF OXIDES OF PHOSPHORUS...
Vapor density8.62
Physical DescriptionColorless liquid[HSDB]
Stability/Shelf LifeSTABLE
Refractive indexn20/D 1.432(lit.)
BRN1777999
InChIInChI=1S/C12H27O3P/c1-4-7-10-14-16(13,12-9-6-3)15-11-8-5-2/h4-12H2,1-3H3
InChIKeyJPGXOMADPRULAC-UHFFFAOYSA-N
SMILESP(CCCC)(=O)(OCCCC)OCCCC
Surface tension27.4mN/m at 298.15K
CAS DataBase Reference78-46-6
EWG's Food Scores1
FDA UNII5GO20BIE6O
NIST Chemistry ReferencePhosphonic acid, butyl-, dibutyl ester(78-46-6)
EPA Substance Registry SystemPhosphonic acid, butyl-, dibutyl ester (78-46-6)
GHS pictogramGHS07
Signal wordWarning
GHS hazard statementsH315-H319-H412
GHS precautionary statementsP264-P280-P302+P352-P321-P332+P313-P362-P264-P280-P305+P351+P338-P337+P313P-P273-P501
Water hazard class (WGK)3
RTECS numberSZ7000000
TSCA inventory statusTSCA listed
Hazardous substances data78-46-6(Hazardous Substances Data)

Safety & Regulations

GHS classificationThis chemical does not meet GHS hazard criteria for 97.6% (40 of 41) of all reports.Not ClassifiedAggregated GHS information provided per 41 reports by companies from 2 notifications to the ECHA C&L Inventory.
Regulatory informationChemical: Phosphonic acid, butyl-, dibutyl esterPhosphonic acid, butyl-, dibutyl ester: Does not have an individual approval but may be used as a component in a product covered by a group standard. It is not approved for use as a chemical in its own right.
Fire potentialCOMBUSTIBLE.FIRE HAZARD: SLIGHT, WHEN EXPOSED TO HEAT OR FLAME.
Hazards summaryMay cause irritation[MSDSonline]
Hazard Classes and CategoriesNot Classified
Hazardous Reactivities and Incompatibilities...IT CAN REACT VIGOROUSLY WITH OXIDIZING MATERIALS.
Fire fighting proceduresTO FIGHT FIRE: FOAM, CARBON DIOXIDE, DRY CHEMICAL...
Storage conditionsIN GENERAL, MATERIALS WHICH ARE TOXIC AS STORED OR WHICH CAN DECOMP INTO TOXIC COMPONENTS...SHOULD BE STORED IN A COOL, WELL-VENTILATED PLACE, OUT OF DIRECT RAYS OF THE SUN, AWAY FROM AREAS OF HIGH FIRE HAZARD, & SHOULD BE PERIODICALLY INSPECTED... INCOMPATIBLE MATERIALS SHOULD BE ISOLATED FROM EACH OTHER.
Protective Action Criteria (PAC)0.18 [mg/m3]2.0 [mg/m3]12 [mg/m3]
Water hazard class (WGK)3
TSCA inventory statusTSCA listed
RTECS numberSZ7000000
Signal wordWarning
GHS pictogramGHS07
GHS hazard statementsH315-H319-H412
GHS precautionary statementsP264-P280-P302+P352-P321-P332+P313-P362-P264-P280-P305+P351+P338-P337+P313P-P273-P501
Hazardous substances data78-46-6(Hazardous Substances Data)

Applications & Uses

Uses

Dibutyl Butylphosphonate is a reagent used in organic synthesis. It is used for uranium extractions as well as in the plasticizing industry.

Dibutyl butylphosphonate|Huagongshe