2-Butynedioic acid

Modify Date: 2024-01-01 22:37:59

2-Butynedioic acid structure	Common Name	2-Butynedioic acid
	CAS Number	142-45-0	Molecular Weight	114.056
	Density	1.7±0.1 g/cm3	Boiling Point	362.4±25.0 °C at 760 mmHg
	Molecular Formula	C₄H₂O₄	Melting Point	180-187 °C (dec.)(lit.)
	MSDS	Chinese USA	Flash Point	187.2±19.7 °C
	Symbol	GHS06	Signal Word	Danger

Name	butynedioic acid
Synonym	More Synonyms

Density	1.7±0.1 g/cm3
Boiling Point	362.4±25.0 °C at 760 mmHg
Melting Point	180-187 °C (dec.)(lit.)
Molecular Formula	C₄H₂O₄
Molecular Weight	114.056
Flash Point	187.2±19.7 °C
Exact Mass	113.995308
PSA	74.60000
LogP	0.34
Vapour Pressure	0.0±1.7 mmHg at 25°C
Index of Refraction	1.560
Storage condition	2-8°C
Water Solubility	soluble

2-Butynedioic acid MSDS(Chinese)

Symbol	GHS06
Signal Word	Danger
Hazard Statements	H301-H315-H319-H335
Precautionary Statements	P261-P301 + P310-P305 + P351 + P338
Personal Protective Equipment	Eyeshields;Faceshields;Gloves;type P2 (EN 143) respirator cartridges
Hazard Codes	T:Toxic;Xi:Irritant;
Risk Phrases	R25;R36/37/38
Safety Phrases	S26-S45-S37/39
RIDADR	UN 2811 6.1/PG 3
WGK Germany	3
Packaging Group	II
Hazard Class	6.1
HS Code	29171990

Precursor 8
CAS#:110-65-6 2-Butine-1,4-diol CAS#:109-72-8 n-Butyllithium CAS#:593-60-2 bromoethene CAS#:124-38-9 Carbon dioxide
CAS#:584-99-6 2-Butenedioic a... CAS#:644-80-4 2-Butenedioic a... CAS#:17096-37-6 2-chlorobut-2-e... CAS#:1066-26-8 sodium acetylide
DownStream 9
CAS#:10302-94-0 2-Butenedioic a... CAS#:328-42-7 Oxaloacetic acid CAS#:4546-95-6 1,2,3-triazole-... CAS#:471-25-0 Propiolic acidd
CAS#:124-38-9 Carbon dioxide CAS#:74-86-2 Acetylene CAS#:14447-02-0 2-Butynedioic a... CAS#:3899-96-5 1-methyl-4-(4-m...
CAS#:142207-58-7 bis(4-methylphe...

HS Code	2917190090
Summary	2917190090 acyclic polycarboxylic acids, their anhydrides, halides, peroxides, peroxyacids and their derivatives VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:6.5% General tariff:30.0%

An efficient and facile synthesis of 3-amino-5-chromenyl-butenolides from 3-formyl chromone, dialkyl acetylenedicarboxylate, and primary amines.

Mol. Divers. 17(1) , 55-61, (2013)

A three-component reaction of 3-formyl chromones, dialkyl acetylenedicarboxylate, and isocyanides in the presence of POCl(3) was used as a highly efficient and practical approach for the synthesis of ...

Efficient synthesis and in vitro antitubercular activity of 1,2,3-triazoles as inhibitors of Mycobacterium tuberculosis.

Bioorg. Med. Chem. Lett. 21 , 7273-6, (2011)

Efficient and rapid synthesis of 1,2,3-triazole derivatives has been achieved via Huisgen's 1,3-dipolar cycloaddition between alkyl/arylazides and diethyl/dimethyl acetylenedicarboxylate in excellent ...

Synthesis of symmetrical and unsymmetrical diarylalkynes from propiolic acid using palladium-catalyzed decarboxylative coupling.

J. Org. Chem. 75(18) , 6244-51, (2010)

Symmetrical diarylalkynes were obtained from propiolic acid (or 2-butynedioic acid) and aryl halides in good yields. The optimized reaction conditions were 2.0 equiv of aryl halide, 1.0 equiv of propi...

MFCD00004362

Acetylendicarboxylate

EINECS 205-536-0

Acetylenedicarboxylic acid

but-2-ynedioic acid

2-Butynedioic acid