Shanghai Nianxing Industrial Co., Ltd
China
Product Name: Palmitic acid
Price: Check
Purity: 98.0%
Stocking Period: 10 Day
Contact: Yang
Email: sales@echemcloud.com

Dayang Chem (Hangzhou) Co., Ltd.
China
Product Name: 1,2-Dicyano-1,2-ethenedithiol
Price: $Inquiry/100g $Inquiry/1kg $Inquiry/100kg $Inquiry/1000kg
Purity: 98.0%
Stocking Period: Inquiry
Contact: Ms Wang
Email: enquiry@dycnchem.com

20654-67-5

20654-67-5 structure

20654-67-5 structure

Name: 1,2-Dicyano-1,2-ethenedithiol
Chemical Name: 2,3-bis(sulfanyl)but-2-enedinitrile
CAS Number: 20654-67-5
Molecular Formula: C₄H₂N₂S₂
Molecular Weight: 142.20200
Create Date: 2017-07-29 18:10:43
Modify Date: 2025-09-21 03:06:10

Name	2,3-bis(sulfanyl)but-2-enedinitrile
Synonyms	cis-1,2-Dimercapto-1,2-dicyanoaethan 1,2-Dicyano-1,2-ethenedithiol cis-1,2-Dimercapto-1,2-dicyan-ethylen maleonitriledithiol 2-Butenedinitrile,2,3-dimercapto Dimercapto-maleonitril dimercapto-maleonitrile 1.2-Dimercapto-maleinsaeure-dinitril

Molecular Formula	C₄H₂N₂S₂
Molecular Weight	142.20200
Exact Mass	141.96600
PSA	125.18000
LogP	1.10476

HS Code	2930909090

33498-03-2 structure

33498-03-2

~%

20654-67-5 structure

20654-67-5

Literature: Simmons,H.E. et al. Journal of the American Chemical Society, 1962 , vol. 84, p. 4756 - 4771

75-15-0 structure

75-15-0

143-33-9 structure

143-33-9

~%

20654-67-5 structure

20654-67-5

Literature: Klingsberg,E. Journal of the American Chemical Society, 1964 , vol. 86, p. 5290 - 5292

Precursor 3
33498-03-2 75-15-0 143-33-9
DownStream 0

HS Code	2930909090
Summary	2930909090. other organo-sulphur compounds. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:30.0%

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