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ChemicalBook >> CAS DataBase List >>6,6-Dimethyl-5,7-dioxaspiro[2.5]octane-4,8-dione

6,6-Dimethyl-5,7-dioxaspiro[2.5]octane-4,8-dione

6,6-Dimethyl-5,7-dioxaspiro[2.5]octane-4,8-dione Structure
6,6-Dimethyl-5,7-dioxaspiro[2.5]octane-4,8-dione structure
CAS No.
5617-70-9
Chemical Name:
6,6-Dimethyl-5,7-dioxaspiro[2.5]octane-4,8-dione
Synonyms
Danishefsky's reagent;CYCLOPROPYL MELDRUM'S ACID;6,6-DiMethyl-5,7-dioxaspiro[2.5]octan-4,8-dione;3,3-Dimethyl-2,4-dioxaspiro[5.2]octane-1,5-dione;5,7-Dioxa-6,6-dimethylspiro[2.5]octane-4,8-dione;6,6-Dimethyl-5,7-dioxaspiro[2.5]octane-4,8-dione;CYCL-ISOPROPYLIDENE CYCLOPROPANE-1,1-DICARBOXYLATE;6,6-dimethyl-5,7-dioxaspiro[2.5]octane-4,8-quinone;5,7-Dioxaspiro[2.5]octane-4,8-dione, 6,6-diMethyl-;6,6-Dimethyl-5,7-dioxaspiro[2.5]octane-4,8-dione >
CBNumber:
CB6433851
Molecular Formula:
C8H10O4
Molecular Weight:
170.16
MDL Number:
MFCD00042796
MOL File:
5617-70-9.mol
MSDS File:
SDS
TDS File:
TDS
Last updated:2026-09-12 18:54:15
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6,6-Dimethyl-5,7-dioxaspiro[2.5]octane-4,8-dione Properties

Melting point 63-65 °C(lit.)
Boiling point 396.8±35.0 °C(Predicted)
Density 1.29±0.1 g/cm3(Predicted)
storage temp. Inert atmosphere,Room Temperature
solubility DMF: soluble(lit.)
form Solid
color White to Off-White
BRN 1241835
InChI InChI=1S/C8H10O4/c1-7(2)11-5(9)8(3-4-8)6(10)12-7/h3-4H2,1-2H3
InChIKey AXJVPXNVESYGDT-UHFFFAOYSA-N
SMILES C1C2(C(=O)OC(C)(C)OC2=O)C1
CAS DataBase Reference 5617-70-9(CAS DataBase Reference)
UNSPSC Code 12352100
NACRES NA.22

SAFETY

Risk and Safety Statements

Symbol(GHS)  Exclamation Mark (GHS07)
GHS07
Signal word  Warning
Hazard statements  H302-H315-H319-H335
Precautionary statements  P261-P301+P312-P302+P352-P304+P340-P305+P351+P338
PPE Eyeshields, Gloves, type N95 (US)
Safety Statements  22-24/25
WGK Germany  3
HS Code  2932209090
Storage Class 11 - Combustible Solids
NFPA 704
1
0 0

6,6-Dimethyl-5,7-dioxaspiro[2.5]octane-4,8-dione price More Price(48)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 341266 cyclic Isopropylidene 1,1-cyclopropanedicarboxylate 99% 5617-70-9 5g $103 2026-04-30 Buy
TCI Chemical C1334 6,6-Dimethyl-5,7-dioxaspiro[2.5]octane-4,8-dione >98.0%(GC) 5617-70-9 1g $23 2026-04-30 Buy
TCI Chemical C1334 6,6-Dimethyl-5,7-dioxaspiro[2.5]octane-4,8-dione >98.0%(GC) 5617-70-9 5g $66 2026-04-30 Buy
Usbiological 270430 Cyclic isopropylidene 1,1-cyclopropanedicarboxylate Asreported 5617-70-9 5g $376 2026-06-03 Buy
Usbiological 270430 Cyclic isopropylidene 1,1-cyclopropanedicarboxylate Asreported 5617-70-9 10g $523 2026-06-03 Buy
Product number Packaging Price Buy
341266 5g $103 Buy
C1334 1g $23 Buy
C1334 5g $66 Buy
270430 5g $376 Buy
270430 10g $523 Buy

6,6-Dimethyl-5,7-dioxaspiro[2.5]octane-4,8-dione Chemical Properties, Uses, Production

Uses

6,6-Dimethyl-5,7-dioxaspiro[2.5]octan-4,8-dione is used as a reagent to synthesize Bis-benzimidazoles, compounds that act as inhibitors of Type II Dihydrofolate reductase (an enzyme that is produced by bacteria in response to Trimethoprim [T795615]as a defense mechanism).

Synthesis Reference(s)

Organic Syntheses, Coll. Vol. 7, p. 411, 1990
The Journal of Organic Chemistry, 40, p. 2969, 1975 DOI: 10.1021/jo00908a030

6,6-Dimethyl-5,7-dioxaspiro[2.5]octane-4,8-dione Preparation Products And Raw materials

Raw materials

Preparation Products

1-(4-Methoxyphenyl)-2-oxopyrrolidine-3-carboxylic acid 1-(3,4-difluorophenyl)-2-oxopyrrolidine-3-carboxylic acid 1-(4-methylphenyl)-2-oxopyrrolidine-3-carboxylic acid 1-(4-Bromophenyl)-2-oxopyrrolidine-3-carboxylic acid

6,6-Dimethyl-5,7-dioxaspiro[2.5]octane-4,8-dione Suppliers

Global Suppliers ( 127)
Supplier Tel Email Country ProdList Advantage
Pushan Industry (Shaanxi) Co., Ltd. 029-81310890 18165209495 2929288192@qq.com China 9949 58
J & K SCIENTIFIC LTD. 18210857532 18210857532 jkinfo@jkchemical.com China 96815 76
Meryer (Shanghai) Chemical Technology Co., Ltd. 4006356688 18621169109 market03@meryer.com China 40202 62
Alfa Aesar 400-6106006 saleschina@alfa-asia.com China 30103 84
TCI (Shanghai) Development Co., Ltd. 021-67121386 Sales-CN@TCIchemicals.com China 24512 81
Energy Chemical 400-0056266 sales8178@energy-chemical.com China 44850 61
Chemsky（shanghai）International Co.,Ltd. 021-50135380 shchemsky@sina.com China 32273 50
Hangzhou Sage Chemical Co., Ltd. +86057186818502 13588463833 info@sagechem.com China 10265 58
Shanghai Topbiochem Technology Co., Ltd +86-21-60341587 sales@topbiochem.com China 6166 58
TOKYO CHEMICAL INDUSTRY CO., LTD. 03-36680489 Sales-JP@TCIchemicals.com Japan 28364 80
Supplier Advantage
Pushan Industry (Shaanxi) Co., Ltd. 58
J & K SCIENTIFIC LTD. 76
Meryer (Shanghai) Chemical Technology Co., Ltd. 62
Alfa Aesar 84
TCI (Shanghai) Development Co., Ltd. 81
Energy Chemical 61
Chemsky（shanghai）International Co.,Ltd. 50
Hangzhou Sage Chemical Co., Ltd. 58
Shanghai Topbiochem Technology Co., Ltd 58
TOKYO CHEMICAL INDUSTRY CO., LTD. 80

View Latest Price from 6,6-Dimethyl-5,7-dioxaspiro[2.5]octane-4,8-dione manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
6,6-DIMETHYL-5,7-DIOXASPIRO[2.5]OCTANE-4,8-DIONE pictures 2026-06-30 6,6-DIMETHYL-5,7-DIOXASPIRO[2.5]OCTANE-4,8-DIONE
5617-70-9
 1kg 99% 10000KGS Shaanxi Dideu New Materials Co. Ltd
6,6-DIMETHYL-5,7-DIOXASPIRO[2.5]OCTANE-4,8-DIONE pictures 2019-07-10 6,6-DIMETHYL-5,7-DIOXASPIRO[2.5]OCTANE-4,8-DIONE
5617-70-9
 $3.00 1KG 99% 100kg Career Henan Chemical Co

6,6-Dimethyl-5,7-dioxaspiro[2.5]octane-4,8-dione Spectrum

6,6-DIMETHYL-5,7-DIOXASPIRO[2.5]OCTANE-4,8-DIONE(5617-70-9)MS6,6-DIMETHYL-5,7-DIOXASPIRO[2.5]OCTANE-4,8-DIONE(5617-70-9)1HNMR6,6-DIMETHYL-5,7-DIOXASPIRO[2.5]OCTANE-4,8-DIONE(5617-70-9)13CNMR6,6-DIMETHYL-5,7-DIOXASPIRO[2.5]OCTANE-4,8-DIONE(5617-70-9)IR16,6-DIMETHYL-5,7-DIOXASPIRO[2.5]OCTANE-4,8-DIONE(5617-70-9)IR2

5617-70-9 (6,6-Dimethyl-5,7-dioxaspiro[2.5]octane-4,8-dione) Related Search:

2,2-Dimethyl-1,3-dioxane-4,6-dione 1-Methylcyclopropanemethanol Dimethylmalonic acid 1,1-Cyclopropanedicarboxylic acid Cyclopropanecarboxylic acid
3-Ethoxy-2,2-dimethyl-3-oxopropanoic acid FEMA 3699 Ethyl cyclopropanecarboxylate Methyl cyclopropane carboxylate 1,1-Bis(hydroxymethyl)cyclopropane
2,2,5-Trimethyl-1,3-dioxane-4,6-dione 1,1-Cyclopropanedicarboxylic acid monomethyl ester 6,6-Dimethyl-5,7-dioxaspiro[2.5]octane-4,8-dione 1,1-Cyclopropanedicarboxylic acid monoethyl ester Ethyl 1-methylcyclopropane-1-carboxylate
1-Methylcyclopropane-1-carboxylic acid methyl ester Isobutyric acid isopropyl ester 5,5-Dimethyl-1,3-dioxane

1of4

CYCL-ISOPROPYLIDENE CYCLOPROPANE-1,1-DICARBOXYLATE CYCLOPROPANE-1,1-DICARBOXYLIC ACID CYCL-ISOPROPYLIDENE ESTER CYCLOPROPANE-1,1-DICARBOXYLIC ACID CYCLOISOPROPYLIDENE ESTER 1,1-Cyclopropanedicarboxylic acid cycl-isopropylidene ester~cycl-Isopropylidene 1,1-cyclopropanedicarboxylate CYCLOPROPYL MELDRUM'S ACID Danishefsky's reagent CYCLOPROPANE-1,1-DICARBOXYLIC ACID CYCL-ISOPRYLIDENE ESTER Cyclopropane-1,1-dicarboxylic acid cyclic-isopropylidene ester 1,1-Cyclopropanedicarboxylic acid cyclic isopropylidene ester, 6,6-Dimethyl-5,7-dioxaspiro[2.5]octane-4,8-dione cyclic Isopropylidene 1,1-cyclopropanedicarboxylate 2,2-Dimethylspiro[1,3-dioxane-5,1'-cyclopropane]-4,6-dione 3,3-Dimethyl-2,4-dioxaspiro[5.2]octane-1,5-dione 5,7-Dioxa-6,6-dimethylspiro[2.5]octane-4,8-dione Cyclopropane-1,1-dicarboxylic acid isopropylidene ester 6,6-dimethyl-5,7-dioxaspiro[2.5]octane-4,8-quinone 5,7-Dioxaspiro[2.5]octane-4,8-dione, 6,6-diMethyl- Cyclopropane-1,1-dicarboxylic Acid cycl-Isopropylidene Ester cycl-Isopropylidene Cyclopropane-1,1-dicarboxylate 6,6-DiMethyl-5,7-dioxaspiro[2.5]octan-4,8-dione cyclic Isopropylidene 1,1-cyclopropanedicarboxylate 99% 6,6-Dimethyl-5,7-dioxaspiro[2.5]octane-4,8-dione > cyclic Isopropylidene 1,1-cyclopropanedicarboxylate-D4 6,6-Dimethyl-5,7-dioxaspiro[2.5]octane-4,8-dione 5617-70-9 Organic Building Blocks Lactones Building Blocks Carbonyl Compounds Simple 3-Membered Ring Compounds Dioxanes & Dioxolanes Dioxanes Cyclopropanes Cyclopropanes Dioxanes Dioxanes & Dioxolanes Simple 3-Membered Ring Compounds