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Acetylenedicarboxylic acid

Product Name
Acetylenedicarboxylic acid
CAS No.
142-45-0
Chemical Name
Acetylenedicarboxylic acid
Synonyms
But-2-ynedioic acid;2-BUTYNEDIOIC ACID;NSC-1903;NSC-631597;Butyne acid;2-Butynedioate;butynedioicaci;BUTYNEDIOIC ACID;Acetylen-dicarbonsαure;2-BUTYNE-1,4-DIOIC ACID
CBNumber
CB0334392
Molecular Formula
C4H2O4
Formula Weight
114.06
MOL File
142-45-0.mol
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Acetylenedicarboxylic acid Property

Melting point:
180-187 °C (dec.) (lit.)
Boiling point:
133.5°C (rough estimate)
Density 
1.1794 (rough estimate)
refractive index 
1.5260 (estimate)
Flash point:
131 °C
storage temp. 
2-8°C
solubility 
Methanol (Slightly), Water
form 
Crystalline Powder or Crystals
pka
pK1: 1.75; pK2: 4.40 (25°C)
color 
White or cream to beige
Water Solubility 
soluble
BRN 
878357
InChIKey
YTIVTFGABIZHHX-UHFFFAOYSA-N
CAS DataBase Reference
142-45-0(CAS DataBase Reference)
NIST Chemistry Reference
2-Butynedioic acid(142-45-0)
EPA Substance Registry System
2-Butynedioic acid (142-45-0)
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Safety

Hazard Codes 
T,Xi
Risk Statements 
25-36/37/38
Safety Statements 
26-45-37/39
RIDADR 
UN 2811 6.1/PG 3
WGK Germany 
3
TSCA 
Yes
HazardClass 
6.1
PackingGroup 
II
HS Code 
29171990
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Danger
Hazard statements

H301Toxic if swalloed

H315Causes skin irritation

H319Causes serious eye irritation

H335May cause respiratory irritation

Precautionary statements

P261Avoid breathing dust/fume/gas/mist/vapours/spray.

P264Wash hands thoroughly after handling.

P264Wash skin thouroughly after handling.

P270Do not eat, drink or smoke when using this product.

P301+P310IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician.

P302+P352IF ON SKIN: wash with plenty of soap and water.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

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N-Bromosuccinimide Price

Sigma-Aldrich
Product number
A15207
Product name
Acetylenedicarboxylic acid
Purity
95%
Packaging
5g
Price
$75.9
Updated
2024/03/01
Sigma-Aldrich
Product number
A15207
Product name
Acetylenedicarboxylic acid
Purity
95%
Packaging
25g
Price
$216
Updated
2024/03/01
TCI Chemical
Product number
A0088
Product name
Acetylenedicarboxylic Acid
Purity
>90.0%(HPLC)
Packaging
5g
Price
$38
Updated
2024/03/01
TCI Chemical
Product number
A0088
Product name
Acetylenedicarboxylic Acid
Purity
>90.0%(HPLC)
Packaging
25g
Price
$152
Updated
2024/03/01
Alfa Aesar
Product number
A18736
Product name
Acetylenedicarboxylic acid, 97%
Packaging
5g
Price
$29.65
Updated
2024/03/01
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Acetylenedicarboxylic acid Chemical Properties,Usage,Production

Chemical Properties

cream coloured to beige crystalline powder or

Uses

Acetylenedicarboxylic acid is employed in the preparation of dimethyl acetylenedicarboxylate and potassium hydrogenacetylenedicarboxylate. It is also used as a laboratory reagent. Further, it is used as a precursor in organic synthesis and also serves as a pharmaceutical intermediate.

Definition

ChEBI: An acetylenic compound that is acetylene in which the hydrogens are replaced by carboxy groups.

Purification Methods

The acid is soluble in Et2O and crystallises from Et2O/pet ether (m 183-183.5o), or H2O as the dihydrate which dehydrates in a desiccator over conc H2SO4 in a vacuum. The dipicrate crystallises from aqueous ether. For the mono K salt see entry in “Metal-organic Compounds”, Chapter 5. [Abbott et al. Org Synth Coll Vol II 10 1943, Huntress et al. Org Synth Coll Vol IV 329 1963, Beilstein 2 H 801, 2 I 317, 2 II 670, 2 III 1991, 2 IV 2290.]

Acetylenedicarboxylic acid Preparation Products And Raw materials

Raw materials

Preparation Products

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Acetylenedicarboxylic acid Suppliers

Shandong Mingde Biotechnology Co., Ltd
Tel
15553348166
Email
m15553348166@163.com
Country
China
ProdList
3556
Advantage
58
J & K SCIENTIFIC LTD.
Tel
010-82848833 400-666-7788
Fax
86-10-82849933
Email
jkinfo@jkchemical.com
Country
China
ProdList
94657
Advantage
76
Meryer (Shanghai) Chemical Technology Co., Ltd.
Tel
021-61259108 18621169109
Fax
86-21-61259102
Email
market03@meryer.com
Country
China
ProdList
40228
Advantage
62
INTATRADE GmbH
Tel
+49 3493/605464
Fax
+49 3493/605470
Email
sales@intatrade.de
Country
Germany
ProdList
3572
Advantage
66
3B Pharmachem (Wuhan) International Co.,Ltd.
Tel
821-50328103-801 18930552037
Fax
86-21-50328109
Email
3bsc@sina.com
Country
China
ProdList
15839
Advantage
69
Alfa Aesar
Tel
400-6106006
Fax
021-67582001/03/05
Email
saleschina@alfa-asia.com
Country
China
ProdList
30123
Advantage
84
TCI (Shanghai) Development Co., Ltd.
Tel
021-67121386
Fax
021-67121385
Email
Sales-CN@TCIchemicals.com
Country
China
ProdList
24529
Advantage
81
Beijing HwrkChemical Technology Co., Ltd
Tel
010-89508211 18501085097
Fax
010-89508210
Email
sales.bj@hwrkchemical.com
Country
China
ProdList
8418
Advantage
55
Energy Chemical
Tel
021-021-58432009 400-005-6266
Fax
021-58436166
Email
sales8178@energy-chemical.com
Country
China
ProdList
44689
Advantage
61
Capot Chemical Co., Ltd
Tel
+86 (0) 571 85 58 67 18
Fax
0086-571-85864795
Email
sales@capotchem.com
Country
China
ProdList
18207
Advantage
66
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View Lastest Price from Acetylenedicarboxylic acid manufacturers

Hebei Weibang Biotechnology Co., Ltd
Product
Acetylenedicarboxylic acid 142-45-0
Price
US $1.00/kg
Min. Order
1kg
Purity
99%
Supply Ability
10 mt
Release date
2024-11-13
Shanghai UCHEM Inc.
Product
Acetaylenedicarboxylic Acid 142-45-0
Price
US $14.00-132.00/g
Min. Order
5g
Purity
0.98
Supply Ability
25kg
Release date
2023-12-11
Hebei Fengjia New Material Co., Ltd
Product
Acetylenedicarboxylic acid 142-45-0
Price
US $3.00/kg
Min. Order
1kg
Purity
0.99
Supply Ability
10000
Release date
2024-09-11

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