Shanghai Nianxing Industrial Co., Ltd
China
Product Name: 1,2-Dichloro-4-ethynylbenzene
Price: Check
Purity: 97.0%
Stocking Period: 10 Day
Contact: Yang
Email: sales@echemcloud.com

Dayang Chem (Hangzhou) Co., Ltd.
China
Product Name: 3,4-Dichlorophenylacetylene
Price: $Inquiry/100g $Inquiry/1kg $Inquiry/100kg $Inquiry/1000kg
Purity: 98.0%
Stocking Period: Inquiry
Contact: Ms Wang
Email: enquiry@dycnchem.com

556112-20-0

556112-20-0 structure

556112-20-0 structure

Name: 1,2-Dichloro-4-ethynylbenzene
Chemical Name: 1,2-dichloro-4-ethynylbenzene
CAS Number: 556112-20-0
Molecular Formula: C₈H₄Cl₂
Molecular Weight: 171.023
Create Date: 2018-08-02 10:51:57
Modify Date: 2025-08-28 10:13:04

Name	1,2-dichloro-4-ethynylbenzene
Synonyms	1,2-Dichloro-4-ethynyl-Benzene 3,4-dichlorophenylethylene MFCD07783046 OR5185 1,2-Dichloro-4-ethynylbenzene Benzene, 1,2-dichloro-4-ethynyl- 3,4-Dichlorophenylacetylene

Density	1.3±0.1 g/cm3
Boiling Point	225.1±30.0 °C at 760 mmHg
Melting Point	40-42ºC
Molecular Formula	C₈H₄Cl₂
Molecular Weight	171.023
Flash Point	93.2±18.1 °C
Exact Mass	169.969009
LogP	3.46
Vapour Pressure	0.1±0.4 mmHg at 25°C
Index of Refraction	1.583
Storage condition	2-8°C

Hazard Codes	Xi
Risk Phrases	36/37/38
Safety Phrases	26-36/37
HS Code	2903999090

Precursor 4
1041171-19-0 13965-03-2 1066-54-2 18282-59-2
DownStream 0

HS Code	2903999090
Summary	2903999090 halogenated derivatives of aromatic hydrocarbons VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:5.5% General tariff:30.0%

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