Shanghai Nianxing Industrial Co., Ltd
China
Product Name: Palmitic acid
Price: Check
Purity: 98.0%
Stocking Period: 10 Day
Contact: Yang
Email: sales@echemcloud.com

Dayang Chem (Hangzhou) Co., Ltd.
China
Product Name: 1,2-CYCLOBUTANEDIONE
Price: $Inquiry/100g $Inquiry/1kg $Inquiry/100kg $Inquiry/1000kg
Purity: 98.0%
Stocking Period: Inquiry
Contact: Ms Wang
Email: enquiry@dycnchem.com

33689-28-0

33689-28-0 structure

33689-28-0 structure

Name: 1,2-CYCLOBUTANEDIONE
Chemical Name: cyclobutane-1,2-dione
CAS Number: 33689-28-0
Molecular Formula: C₄H₄O₂
Molecular Weight: 84.07340
Create Date: 2018-05-20 08:00:00
Modify Date: 2025-08-26 01:49:18

Name	cyclobutane-1,2-dione
Synonyms	cyclobutanedione 1,2-Cyclobutanedione Cyclobutan-1,2-dion 1,2-cyclobutadione 1,2-Cyclobutandion

Density	1.314g/cm3
Boiling Point	155.7ºC at 760mmHg
Melting Point	65ºC
Molecular Formula	C₄H₄O₂
Molecular Weight	84.07340
Flash Point	48ºC
Exact Mass	84.02110
PSA	34.14000
Index of Refraction	1.496

HS Code	2914299000

15506-53-3 structure

15506-53-3

141-52-6 structure

141-52-6

~69%

33689-28-0 structure

33689-28-0

Literature: Lonza Ltd. Patent: US5118847 A1, 1992 ;

15506-53-3 structure

15506-53-3

~48%

33689-28-0 structure

33689-28-0

Literature: Lonza Ltd. Patent: US5118847 A1, 1992 ;

15506-53-3 structure

15506-53-3

101-83-7 structure

101-83-7

~99%

33689-28-0 structure

33689-28-0

Literature: Lonza Ltd. Patent: US5118847 A1, 1992 ;

15506-53-3 structure

15506-53-3

109-89-7 structure

109-89-7

~81%

33689-28-0 structure

33689-28-0

Literature: Lonza Ltd. Patent: US5118847 A1, 1992 ;

98-94-2 structure

98-94-2

15506-53-3 structure

15506-53-3

~83%

33689-28-0 structure

33689-28-0

Literature: Lonza Ltd. Patent: US5118847 A1, 1992 ;

15506-53-3 structure

15506-53-3

19293-63-1 structure

19293-63-1

~79%

33689-28-0 structure

33689-28-0

Literature: Lonza Ltd. Patent: US5118847 A1, 1992 ;

75-77-4 structure

75-77-4

106-65-0 structure

106-65-0

~%

2857-97-8 structure

2857-97-8

33689-28-0 structure

33689-28-0

Literature: Deguest, Geoffrey; Bischoff, Laurent; Fruit, Corinne; Marsais, Francis Synthetic Communications, 2008 , vol. 38, # 6 p. 841 - 847

17082-61-0 structure

17082-61-0

~%

33689-28-0 structure

33689-28-0

Literature: Salauen, J.; Almirantis, Y. Tetrahedron, 1983 , vol. 39, # 14 p. 2421 - 2428

Precursor 8
15506-53-3 141-52-6 101-83-7 109-89-7
98-94-2 75-77-4 106-65-0 17082-61-0
DownStream 3
33689-29-1 17994-25-1 42206-10-0

HS Code	2914299000
Summary	2914299000. other cyclanic, cyclenic or cyclotherpenic ketones without other oxygen function. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:5.5%. General tariff:30.0%

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