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Key Documents

W329118

Sigma-Aldrich

4-Hydroxybutanoic acid lactone

≥98%, FCC, FG

Synonym(s):

γ-Butyrolactone, γ-Hydroxybutyric acid lactone, 4-Hydroxybutyric acid lactone, GBL

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About This Item

Empirical Formula (Hill Notation):
C4H6O2
CAS Number:
Molecular Weight:
86.09
FEMA Number:
3291
Beilstein:
105248
EC Number:
Council of Europe no.:
615
MDL number:
UNSPSC Code:
12164502
PubChem Substance ID:
Flavis number:
10.006
NACRES:
NA.21

biological source

synthetic

Quality Level

grade

FG
Fragrance grade
Halal
Kosher

Agency

follows IFRA guidelines
meets purity specifications of JECFA

reg. compliance

EU Regulation 1223/2009
EU Regulation 1334/2008 & 178/2002
FCC
FDA

vapor density

3 (vs air)

vapor pressure

1.5 mmHg ( 20 °C)

Assay

≥98%

autoignition temp.

851 °F

expl. lim.

16 %

refractive index

n20/D 1.436 (lit.)

bp

204-205 °C (lit.)

mp

−45 °C (lit.)

density

1.12 g/mL at 25 °C (lit.)

application(s)

flavors and fragrances

Documentation

see Safety & Documentation for available documents

food allergen

no known allergens

fragrance allergen

no known allergens

Organoleptic

caramel; creamy; fatty; oily

SMILES string

O=C1CCCO1

InChI

1S/C4H6O2/c5-4-2-1-3-6-4/h1-3H2

InChI key

YEJRWHAVMIAJKC-UHFFFAOYSA-N

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Application


  • RIFM fragrance ingredient safety assessment, 4-hydroxybutanoic acid lactone, CAS Registry Number 96-48-0.: A comprehensive safety assessment of 4-hydroxybutanoic acid lactone as a fragrance ingredient, evaluating its toxicological profile and safe usage levels (Api et al., 2019).

Biochem/physiol Actions

Precursor of γ-hydroxybutyric acid (GHB). It blocks dopamine release by blocking impulse flow in dopaminergic neurons. Pretreatment with γ-butyrolactone allows detection of autoreceptor-induced dopamine release.

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Pictograms

CorrosionExclamation mark

Signal Word

Danger

Hazard Statements

Hazard Classifications

Acute Tox. 4 Oral - Eye Dam. 1 - STOT SE 3

Target Organs

Central nervous system

Storage Class Code

10 - Combustible liquids

WGK

WGK 1

Flash Point(F)

208.4 °F - closed cup

Flash Point(C)

98 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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