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Acetylenedicarboxylic acid cas no:142-45-0

Synonyms: Butynedioic acid; Acetaylenedicarboxylic Acid

Identification
NameAcetylenedicarboxylic acid
CAS142-45-0
SynonymsButynedioic acid; Acetaylenedicarboxylic Acid
EINECS(EC#)205-536-0
Molecular FormulaC4H2O4
Molecular Weight114.06
Chemical Properties
Appearancecream coloured to beige crystalline powder
storage temp2-8°C
Globally Harmonized System of Classification adn Labelling of Chemicals(GHS)
Hazardclass6.1
Safety Data

Hazard T:Toxic;Xi:Irritant;
Risk R25;R36/37/38
Safety

Hazard Codes: ToxicT, IrritantXi
Risk Statements: 25-36/37/38 
R25 :Toxic if swallowed. 
R36/37/38:Irritating to eyes, respiratory system and skin.
Safety Statements: 26-45-37/39 
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. 
S45:In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) 
S37/39:Wear suitable gloves and eye/face protection.
RIDADR: UN 2811 6.1/PG 3
WGK Germany: 3
HazardClass: 6.1
PackingGroup: II
HS Code: 29171990


HS Code 29171990

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Langfang Triple Well Chemicals Co., Ltd. (LTW)
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Changzhou Qihua Chemical Co., Ltd.
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lotuschem
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HangZhou Peak Chemical Co.,Ltd
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AOPHARM
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Jinan Asia Pharma Tech Co., Ltd.
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Zhangjiagang Pharmabl Co.,Ltd
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Hebei yanxi chemical co., LTD
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Jinan Asia Pharma Tech Co., Ltd.
Tel:86-531-67807744
Address: No.750, Shunhua Road,High&New Tech Zone,Jinan,Shandong,P.R.China
Hangzhou Dayangchem Co., Ltd.
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Address: 9/F Unit 2 ChangdiTorch Building, 259 #WenSan Road
Hangzhou J&H Chemical Co., Ltd
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Shanghai Meicheng Chemical Co., Ltd.
Tel:86-21-50677091
Address: Room 302, Building 7, No.1000, Jinhai Road, Shanghai, 201206, China
Jinan Haohua Industry Co., Ltd.
Tel:0086-531-58773055
Address: No.59 Gongye South RD
Boc Sciences
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Address: 45-16 Ramsey Road Shirley, NY 11967, USA
Tianjin Changda-metal import and export co., LTD
Tel:86-22-58611899
Address: Room 1806 ,Baoli International Building,Nankai Dis

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