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: Diethyl acetylenedicarboxylate
Price: $Inquiry/100g $Inquiry/1kg $Inquiry/100kg $Inquiry/1000kg
Purity: 98.0%
Stocking Period: Inquiry
Contact: Ms Wang
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Henan Tianfu Chemical Co., Ltd.
China
Product Name: Diethyl acetylenedicarboxylate
Price: $Inquiry/1kg $Inquiry/25kg $Inquiry/1000kg $Inquiry/10ton
Purity: 99.0%
Stocking Period: Inquiry
Contact: Anson
Email: info@tianfuchem.com

762-21-0

762-21-0 structure

762-21-0 structure

Name: diethylbut-2-indioat
Chemical Name: Diethyl acetylenedicarboxylate
CAS Number: 762-21-0
Molecular Formula: C₈H₁₀O₄
Molecular Weight: 170.163
Catalog: Organic raw materials Carboxylic compounds and derivatives Carboxylic esters and their derivatives
Create Date: 2018-02-21 08:00:00
Modify Date: 2026-06-30 17:45:23

Name	Diethyl acetylenedicarboxylate
Synonyms	2-butynedioic acid diethyl ester Diethyl but-2-ynedioate Acetylenedicarboxylic acid, diethyl ester YL2-BUTYNEDIOATE 2-Butynedioic acid, 1,4-diethyl ester ACETYLENEDICBOXYLIC ACID DIETHYL ESTER Diethyl but-2-yne-1,4-dioate DIETHYL BUTYNEDIOATE 2-Butynedioic acid, diethyl ester DIETHYL ACETYLENEDICBOXYLATE FOR SYNTH but-2-ynedioic acid diethyl ester Diethyl 2-butynedioate Di-Ethyl acetylenedicarboxylate butynedioic acid diethyl ester diethyl but-2-ynedioate Diethyl acetylenedicboxylate Diethyl acetylenedic Bis-(Ethoxycarbonyl)acetylene Bis(cboethoxy)acetylene Diethyl butyrate Diethyl acetylenedicboxylate ISO 9001：2015 REACH EINECS 212-095-8 MFCD00009186 Diethyl Acetylenedicboxylate > Bis-(Ethoxycbonyl)acetylene Diethyl acetylenedicboxylic acid Diethyl acetylenedicboxylate, R

Density	1.1±0.1 g/cm3
Boiling Point	233.9±0.0 °C at 760 mmHg
Melting Point	1-3 °C
Molecular Formula	C₈H₁₀O₄
Molecular Weight	170.163
Flash Point	94.4±0.0 °C
Exact Mass	170.057907
PSA	52.60000
LogP	2.57
Vapour Pressure	0.1±0.4 mmHg at 25°C
Index of Refraction	1.452
Storage condition	0-6°C

Symbol	GHS05
Signal Word	Danger
Hazard Statements	H314
Precautionary Statements	P280-P305 + P351 + P338-P310
Personal Protective Equipment	Faceshields;full-face respirator (US);Gloves;Goggles;multi-purpose combination respirator cartridge (US);type ABEK (EN14387) respirator filter
Hazard Codes	C:Corrosive;
Risk Phrases	R34
Safety Phrases	S26-S36/37/39-S45-S25
RIDADR	UN 3265 8/PG 2
WGK Germany	3
Packaging Group	III
Hazard Class	8
HS Code	29171990

Precursor 9
13677-32-2 64-17-5 928-04-1 142-45-0
137436-73-8 137436-75-0 71-43-2 1114-31-4
141-52-6
DownStream 8
4316-23-8 55040-86-3 3073-05-0 32413-08-4
144537-06-4 141211-59-8 18352-45-9 563-45-1

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%

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