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Safety Information

E33408

Sigma-Aldrich

Ethyl isodehydracetate

99%

Synonym(s):

Ethyl 4,6-dimethyl-2-oxo-2H-pyran-5-carboxylate

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About This Item

Empirical Formula (Hill Notation):
C10H12O4
CAS Number:
3385-34-0
Molecular Weight:
196.20
EC Number:
222-195-3
MDL number:
MFCD00006643
UNSPSC Code:
12352100
PubChem Substance ID:
24894507
NACRES:
NA.22

Assay

99%

refractive index

n20/D 1.515 (lit.)

bp

290-295 °C (lit.)

mp

17-18 °C (lit.)

density

1.167 g/mL at 25 °C (lit.)

SMILES string

CCOC(=O)C1=C(C)OC(=O)C=C1C

InChI

1S/C10H12O4/c1-4-13-10(12)9-6(2)5-8(11)14-7(9)3/h5H,4H2,1-3H3

InChI key

FBPWNVQUVXSXKS-UHFFFAOYSA-N

Storage Class Code

12 - Non Combustible Liquids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

FSL

Group 4: Flammable liquids
Type 3 petroleums
Hazardous rank III
Water insoluble liquid

JAN Code

E33408-BULK:
E33408-VAR:
E33408-25G:
E33408-5G:
E33408-1KG:

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Certificates of Analysis (COA)

Lot/Batch Number
STBC4090V
S14495V
S14495
14124DA
08521HA

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A M Maione et al.
Steroids, 54(3), 313-320 (1989-09-01)
Condensation of C22 and C21 steroidal aldehydes with ethyl 4,6-dimethyl-2-oxo-2H-pyran-5-carboxylate 1 in alkaline medium, followed by decarboxylation, provides a simple route to the alpha, beta-unsaturated side-chain delta-lactone synthesis for a classical withanolide precursor.

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