2231-66-5

2231-66-5 structure

Name: 2,2-Dimethyl-5-(1-Methyl Ethylidene)-1,3-Dioxane-4,6-Dione
Chemical Name: 2,2-dimethyl-5-propan-2-ylidene-1,3-dioxane-4,6-dione
CAS Number: 2231-66-5
Molecular Formula: C₉H₁₂O₄
Molecular Weight: 184.18900
Create Date: 2018-06-19 19:56:05
Modify Date: 2025-08-26 10:54:34

Name	2,2-dimethyl-5-propan-2-ylidene-1,3-dioxane-4,6-dione
Synonyms	EINECS 218-770-3 isopropylidene Meldrum's acid 2,2-dimethyl-5-isopropylidene-1,3-dioxane-4,6-dione

Density	1.138g/cm3
Boiling Point	378ºC at 760mmHg
Melting Point	128 °C
Molecular Formula	C₉H₁₂O₄
Molecular Weight	184.18900
Flash Point	199.5ºC
Exact Mass	184.07400
PSA	52.60000
LogP	1.15890
Vapour Pressure	6.48E-06mmHg at 25°C
Index of Refraction	1.464
Storage condition	2-8°C

HS Code	2934999090

2033-24-1

67-64-1

~83%

2231-66-5

Literature: BOEHRINGER INGELHEIM INTERNATIONAL GMBH; FANDRICK, Daniel Robert; YEE, Nathan; SONG, Jinhua J.; REEVES, Jonathan Timothy Patent: WO2010/141334 A1, 2010 ; Location in patent: Page/Page column 13-14 ;

2033-24-1

75-65-0

2231-66-5

40052-13-9

Literature: Ratiopharm GmbH Patent: EP1834944 A1, 2007 ; Location in patent: Page/Page column 5 ;

2033-24-1

2231-66-5

Literature: Tararov, Vitali I.; Korostylev, Andrei; Koenig, Gerd; Boerner, Armin Synthetic Communications, 2006 , vol. 36, # 2 p. 187 - 191

Precursor 3
2033-24-1 67-64-1 75-65-0
DownStream 9
42288-08-4 72651-95-7 77228-15-0 81710-06-7
63364-70-5 112946-26-6 51637-55-9 67-64-1
4136-26-9

HS Code	2934999090
Summary	2934999090. other heterocyclic compounds. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

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