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: (5Z)-5-[(Z)-(5-oxo-2-furylidene)hydrazinylidene]furan-2-one
Price: $Inquiry/100g $Inquiry/1kg $Inquiry/100kg $Inquiry/1000kg
Purity: 98.0%
Stocking Period: Inquiry
Contact: Ms Wang
Email: enquiry@dycnchem.com

6990-21-2

6990-21-2 structure

6990-21-2 structure

Name: (5Z)-5-[(Z)-(5-oxo-2-furylidene)hydrazinylidene]furan-2-one
Chemical Name: (5E)-5-[(E)-(5-oxofuran-2-ylidene)hydrazinylidene]furan-2-one
CAS Number: 6990-21-2
Molecular Formula: C₈H₄N₂O₄
Molecular Weight: 192.12800
Create Date: 2018-06-19 11:20:03
Modify Date: 2025-09-20 12:19:37

Names
Properties

Name	(5E)-5-[(E)-(5-oxofuran-2-ylidene)hydrazinylidene]furan-2-one
Synonyms	Bis-(5-nitro-o-tolyl)-phosphinsaeure Bis(5-nitro-2-tolyl)phosphinsaeure Bis-(5-oxo-5H-[2]furyliden)-hydrazin bis-(5-oxo-5H-[2]furylidene)-hydrazine

Density	1.584g/cm3
Boiling Point	320.438ºC at 760 mmHg
Molecular Formula	C₈H₄N₂O₄
Molecular Weight	192.12800
Flash Point	169.956ºC
Exact Mass	192.01700
PSA	77.32000
Index of Refraction	1.662

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