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: 2-Butenoic acid,4-(formylamino)-4-oxo-, (2E)-
Price: $Inquiry/100g $Inquiry/1kg $Inquiry/100kg $Inquiry/1000kg
Purity: 98.0%
Stocking Period: Inquiry
Contact: Ms Wang
Email: enquiry@dycnchem.com

6626-94-4

6626-94-4 structure

6626-94-4 structure

Name: 2-Butenoic acid,4-(formylamino)-4-oxo-, (2E)-
Chemical Name: (E)-4-formamido-4-oxobut-2-enoic acid
CAS Number: 6626-94-4
Molecular Formula: C₅H₅NO₄
Molecular Weight: 143.09700
Create Date: 2017-06-26 20:40:51
Modify Date: 2025-09-22 18:14:36

Name	(E)-4-formamido-4-oxobut-2-enoic acid
Synonyms	Fumaramic acid,N-formyl

Density	1.395g/cm3
Molecular Formula	C₅H₅NO₄
Molecular Weight	143.09700
Exact Mass	143.02200
PSA	83.47000
Index of Refraction	1.509

HS Code	2924199090

HS Code	2924199090
Summary	2924199090. other acyclic amides (including acyclic carbamates) and their derivatives; salts thereof. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:30.0%

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