Shanghai Nianxing Industrial Co., Ltd
China
Product Name: Palmitic acid
Price: Check
Purity: 98.0%
Stocking Period: 10 Day
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Dayang Chem (Hangzhou) Co., Ltd.
China
Product Name: 4-CHLORO-3-ETHOXY-BUT-2-ENOIC ACID ETHYL ESTER
Price: $Inquiry/100g $Inquiry/1kg $Inquiry/100kg $Inquiry/1000kg
Purity: 98.0%
Stocking Period: Inquiry
Contact: Ms Wang
Email: enquiry@dycnchem.com

65840-68-8

65840-68-8 structure

65840-68-8 structure

Name: Ethyl (E)-4-chloro-3-ethoxybut-2-enoate
Chemical Name: 4-chloro-3-ethoxy-but-2-enoic acid ethyl ester
CAS Number: 65840-68-8
Molecular Formula: C₈H₁₃ClO₃
Molecular Weight: 192.64000
Create Date: 2018-12-24 10:37:08
Modify Date: 2025-09-17 19:32:06

Name	4-chloro-3-ethoxy-but-2-enoic acid ethyl ester
Synonyms	Ethyl (2E)-4-chloro-3-ethoxybut-2-enoate ETHYL 4-CHLORO-3-ETHOXY-2(E)-BUTENOATE 2-Butenoic acid, 4-chloro-3-ethoxy-, ethyl ester, (2E) ethyl (E)-4-chloro-3-ethoxybut-2-enoate ethyl (E)-4-chloro-3-ethoxy-2-butenoate 4-chloro-3-ethoxy-but-2E-enoic acid ethyl ester 4-CHLORO-3-ETHOXY-BUT-2-ENOIC ACID ETHYL ESTER (E)-4-Chloro-3-ethoxy-2-butenoic acid ethyl ester 2-BUTENOIC ACID, 4-CHLORO-3-ETHOXY-, ETHYL ESTER, (E)

Molecular Formula	C₈H₁₃ClO₃
Molecular Weight	192.64000
Exact Mass	192.05500
PSA	35.53000
LogP	1.70870

HS Code	2918990090

41295-64-1 structure

41295-64-1

~89%

65840-68-8 structure

65840-68-8

Literature: Lonza Ltd. Patent: US4966989 A1, 1990 ;

66974-34-3 structure

66974-34-3

141-52-6 structure

141-52-6

~%

65840-68-8 structure

65840-68-8

Literature: Tendil,J. et al. Bulletin de la Societe Chimique de France, 1977 , p. 565 - 569

Precursor 3
41295-64-1 66974-34-3 141-52-6
DownStream 2
142274-08-6 65840-81-5

HS Code	2918990090
Summary	2918990090. other carboxylic acids with additional oxygen function and their anhydrides, halides, peroxides and peroxyacids; their halogenated, sulphonated, nitrated or nitrosated derivatives. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:30.0%

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