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Product Name: 2-Oxetanone,3,3-dimethyl-4-(1-methylethylidene)-
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3173-79-3

3173-79-3 structure

3173-79-3 structure

Name: 2-Oxetanone,3,3-dimethyl-4-(1-methylethylidene)-
Chemical Name: 3,3-dimethyl-4-propan-2-ylideneoxetan-2-one
CAS Number: 3173-79-3
Molecular Formula: C₈H₁₂O₂
Molecular Weight: 140.18000
Create Date: 2016-08-28 09:46:27
Modify Date: 2025-09-14 15:30:53

Name	3,3-dimethyl-4-propan-2-ylideneoxetan-2-one
Synonyms	4-isopropylidene-3,3-dimethyloxetan-2-one 2-Oxetanone,4-isopropylidene-3,3-dimethyl EINECS 221-643-5 4-Isopropylidene-3,3-dimethyl-2-oxetanone Dimethylketene dimer

Molecular Formula	C₈H₁₂O₂
Molecular Weight	140.18000
Exact Mass	140.08400
PSA	26.30000
LogP	1.86330

CHEMICAL IDENTIFICATION

RTECS NUMBER :: RQ7875000

CHEMICAL NAME :: 2-Oxetanone, 4-isopropylidene-3,3-dimethyl-

CAS REGISTRY NUMBER :: 3173-79-3

LAST UPDATED :: 199712

DATA ITEMS CITED :: 1

MOLECULAR FORMULA :: C8-H12-O2

MOLECULAR WEIGHT :: 140.20

WISWESSER LINE NOTATION :: T4VOY DHJ CUY1&1 D1 D1

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Subcutaneous

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 39 gm/kg/78W-I

TOXIC EFFECTS :: Tumorigenic - equivocal tumorigenic agent by RTECS criteria Tumorigenic - tumors at site of application

REFERENCE :: JNCIAM Journal of the National Cancer Institute. (Washington, DC) V.1-60, 1940-78. For publisher information, see JJIND8. Volume(issue)/page/year: 39,1213,1967

HS Code	2932209090

598-26-5 structure

598-26-5

~75%

3173-79-3 structure

3173-79-3

Literature: Ibrahim, Ahmad A.; Wei, Pei-Hsun; Harzmann, Gero D.; Kerrigan, Nessan J. Journal of Organic Chemistry, 2010 , vol. 75, # 22 p. 7901 - 7904

Precursor 1
598-26-5
DownStream 7
10472-34-1 14261-54-2 15904-30-0 32687-24-4
32674-66-1 14261-50-8 778-18-7

HS Code	2932209090
Summary	2932209090. other lactones. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

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