dimethylglyoxal

Butanedione

biacetyl

diacetyl

dimethyl diketone

QSJXEFYPDANLFS-UHFFFAOYSA-N

Dimethyl glyoxal

Biacetyl; BDM

AC1L19PK

ACMC-1AE2K

Diacetyl (natural)

Glyoxal, dimethyl-

2,3-diketobutane

KSC235Q7P

R557

2,3 butandione

2,3-butandione

2,3-butanedione

2,3-dioxobutane

2.3-butanedione

NSC8750

UN2346

2,3-Butadione

B0682

BDBM22725

CCRIS 827

CTK1D5877

HMDB03407

HSDB 297

K324J5K4HM

SGCUT00113

CHEMBL365809

LP00387

LS-116

RP18441

(CH3CO)2

2,3-Butanedione, analytical standard

C00741

HMS3261M15

UNII-K324J5K4HM

WLN: 1VV1

AN-1414

BBL027725

Butan-2,3-dione

Butane-2,3-dione

Diacetyl, natural, >=95%

DTXSID6021583

NSC 8750

NSC-8750

OR000189

OR109765

OR306804

A826155

Buta-2,3-dione

CHEBI:16583

D 3634

DSSTox_CID_1583

ZINC1532732

ANW-41516

DSSTox_GSID_21583

KB-16658

Lopac-D-3634

BB_SC-8804

Butanedione [UN2346]

DSSTox_RID_76219

LMFA12000012

MFCD00008756

ZINC01532732

AI3-03313

CCG-204481

DB-003226

RTR-016761

to_000005

TR-016761

AKOS000118816

I14-1154

Lopac0_000387

BRN 0605398

EU-0100387

FEMA No. 2370

FT-0609502

FT-0624585

FT-0663924

2,3-Butanedione, 97%

Tox21_201218

Tox21_500387

431-03-8

F0001-1188

Butanedione [UN2346] [Flammable liquid]

MCULE-5742661187

NCGC00015336-01

NCGC00015336-02

NCGC00015336-03

NCGC00015336-04

NCGC00015336-05

NCGC00015336-06

NCGC00090746-01

NCGC00090746-02

NCGC00090746-03

NCGC00258770-01

NCGC00261072-01

CAS-431-03-8

EINECS 207-069-8

2,3-Butanedione (8CI,9CI)

151677-70-2

Butanedione [UN2346] [Flammable liquid]

MolPort-001-768-865

57419-EP2275409A1

57419-EP2275422A1

57419-EP2289483A1

57419-EP2298755A1

57419-EP2308878A2

157009-EP2283898A1

4-01-00-03644 (Beilstein Handbook Reference)

DEE64962-0BD5-454C-8BDA-FDBD33C47181

InChI=1/C4H6O2/c1-3(5)4(2)6/h1-2H

The Henry's Law constant for diacetyl is 1.33X10-5 atm-cu m/mole(1). This Henry's Law constant indicates that diacetyl is expected to volatilize from water surfaces(2). Based on this Henry's Law constant, the volatilization half-life from a model river (1 m deep, flowing 1 m/sec, wind velocity of 3 m/sec)(2) is estimated as 2.7 days(SRC). The volatilization half-life from a model lake (1 m deep, flowing 0.05 m/sec, wind velocity of 0.5 m/sec)(2) is estimated as 22 days(SRC). Diacetyl's Henry's Law constant indicates that volatilization from moist soil surfaces may occur(SRC). Diacetyl is expected to volatilize from dry soil surfaces(SRC) based upon a vapor pressure of 56.8 mm Hg(3).
Literature: (1) Betterton EA; Atmos Environ 25A:1473-7 (1991) (2) Lyman WJ et al; Handbook of Chemical Property Estimation Methods. Washington, DC: Amer Chem Soc pp. 15-1 to 15-29 (1990) (3) Boublik T et al; The vapor pressures of pure substances. Vol. 17. Amsterdam, Netherlands: Elsevier Sci. Publ (1984)

The Koc of diacetyl is estimated as 1(SRC), using a log Kow of -1.34(1) and a regression-derived equation(2). According to a classification scheme(3), this estimated Koc value suggests that diacetyl is expected to have very mobility in soil.
Literature: (1) Hansch C et al; Exploring QSAR. Hydrophobic, Electronic, and Steric Constants. ACS Prof Ref Book. Heller SR, consult. ed., Washington, DC: Amer Chem Soc p. 9 (1995) (2) US EPA; Estimation Program Interface (EPI) Suite. Ver. 4.1. Nov, 2012. Available from, as of May 31, 2016: http://www2.epa.gov/tsca-screening-tools (3) Swann RL et al; Res Rev 85: 17-28 (1983)