Shanghai Nianxing Industrial Co., Ltd
China
Product Name: 2-Butynoic acid
Price: Check
Purity: 98.0%
Stocking Period: 10 Day
Contact: Yang
Email: sales@echemcloud.com

Shanghai Jizhi Biochemical Technology Co., Ltd
China
Product Name: 2-Butynoic acid
Price: ￥118.0/1g ￥318.0/5g
Purity: 98.0%
Stocking Period: 2 Day
Contact: Liu jia
Email: 2130147988@qq.com

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

Henan Tianfu Chemical Co., Ltd.
China
Product Name: 2-Butynoic acid
Price: $Inquiry/1kg $Inquiry/25kg $Inquiry/1000kg $Inquiry/10ton
Purity: 99.0%
Stocking Period: Inquiry
Contact: Anson
Email: info@tianfuchem.com

590-93-2

590-93-2 structure

590-93-2 structure

Name: 2-Butynoic acid
Chemical Name: 2-Butynoic acid
CAS Number: 590-93-2
Molecular Formula: C₄H₄O₂
Molecular Weight: 84.073
Catalog: Chemical reagent Organic reagent fatty acid
Create Date: 2018-08-30 15:31:19
Modify Date: 2025-08-22 12:20:44

Name	2-Butynoic acid
Synonyms	2-Butynoic acid MFCD00004363 EINECS 209-695-7 But-2-ynoic acid

Density	1.2±0.1 g/cm3
Boiling Point	203.0±9.0 °C at 760 mmHg
Melting Point	78-80 °C(lit.)
Molecular Formula	C₄H₄O₂
Molecular Weight	84.073
Flash Point	90.9±15.2 °C
Exact Mass	84.021126
PSA	37.30000
LogP	0.85
Vapour Pressure	0.1±0.8 mmHg at 25°C
Index of Refraction	1.468
Storage condition	2-8°C

Symbol	GHS05
Signal Word	Danger
Hazard Statements	H314
Precautionary Statements	P280-P305 + P351 + P338-P310
Personal Protective Equipment	Eyeshields;Faceshields;full-face particle respirator type N100 (US);Gloves;respirator cartridge type N100 (US);type P1 (EN143) respirator filter;type P3 (EN 143) respirator cartridges
Hazard Codes	C:Corrosive;
Risk Phrases	R20/21/22;R34
Safety Phrases	S26-S27-S36/37/39-S45
RIDADR	UN 3261 8/PG 2
WGK Germany	3
Packaging Group	II
Hazard Class	8
HS Code	2916190090

Precursor 9
764-01-2 725339-89-9 124-38-9 74-99-7
59110-16-6 10486-71-2 141-97-9 33549-66-5
24557-16-2
DownStream 10
600-30-6 54698-60-1 148680-95-9 4344-87-0
4341-76-8 3724-65-0 503-64-0 20320-20-1
67-64-1 108-67-8

HS Code	2916190090
Summary	2916190090 unsaturated acyclic monocarboxylic acids, their anhydrides, halides, peroxides, peroxyacids and their derivatives。supervision conditions:AB(certificate of inspection for goods inward,certificate of inspection for goods outward)。VAT:17.0%。tax rebate rate:9.0%。MFN tariff:6.5%。general tariff:30.0%

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