Shanghai Nianxing Industrial Co., Ltd
China
Product Name: Palmitic acid
Price: Check
Purity: 98.0%
Stocking Period: 10 Day
Contact: Yang
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Dayang Chem (Hangzhou) Co., Ltd.
China
Product Name: Ethanedioic acid,bimol. monoanhydride, dimethyl ester (9CI)
Price: $Inquiry/100g $Inquiry/1kg $Inquiry/100kg $Inquiry/1000kg
Purity: 98.0%
Stocking Period: Inquiry
Contact: Ms Wang
Email: enquiry@dycnchem.com

5781-55-5

5781-55-5 structure

5781-55-5 structure

Name: Ethanedioic acid,bimol. monoanhydride, dimethyl ester (9CI)
Chemical Name: 2-O-(2-methoxy-2-oxoacetyl) 1-O-methyl oxalate
CAS Number: 5781-55-5
Molecular Formula: C₆H₆O₇
Molecular Weight: 190.10800
Create Date: 2017-01-28 22:08:18
Modify Date: 2025-10-11 20:05:31

Name	2-O-(2-methoxy-2-oxoacetyl) 1-O-methyl oxalate
Synonyms	2,5,8-Trioxanonane-3,4,6,7-tetrone Methoxalsaeureanhydrid methoxy(oxo)acetic anhydride EINECS 227-309-5 methoxalic anhydride Oxalsaeure-monomethylester-anhydrid

Density	1.406g/cm3
Boiling Point	242.3ºC at 760mmHg
Molecular Formula	C₆H₆O₇
Molecular Weight	190.10800
Flash Point	101.6ºC
Exact Mass	190.01100
PSA	95.97000
Index of Refraction	1.434

5781-53-3 structure

5781-53-3

10304-09-3 structure

10304-09-3

~%

5781-55-5 structure

5781-55-5

Literature: Oppenauer,R.V. Monatshefte fuer Chemie, 1966 , vol. 97, p. 67 - 76

Precursor 2
5781-53-3 10304-09-3
DownStream 0

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