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

Shanghai Jizhi Biochemical Technology Co., Ltd
China
Product Name: violuric acid
Price: ￥366.0/10g ￥726.0/25g ￥56.0/1g ￥216.0/5g
Purity: 97.0%
Stocking Period: 1 Day
Contact: Liu jia
Email: 2130147988@qq.com

DC Chemicals Limited
China
Product Name: Violuric acid
Price: ￥Inquiry/1g
Purity: 98.9%
Stocking Period: 1 Day
Contact: Tony Cao
Email: sales@dcchemicals.com

Dayang Chem (Hangzhou) Co., Ltd.
China
Product Name: 2,4,5,6(1H,3H)-Pyrimidinetetrone,5-oxime
Price: $Inquiry/100g $Inquiry/1kg $Inquiry/100kg $Inquiry/1000kg
Purity: 98.0%
Stocking Period: Inquiry
Contact: Ms Wang
Email: enquiry@dycnchem.com

Henan Tianfu Chemical Co., Ltd.
China
Product Name: 87-39-8 C4H3N3O4 VIOLURIC ACID
Price: $Inquiry/1kg $Inquiry/25kg $Inquiry/1000kg $Inquiry/10ton
Purity: 99.0%
Stocking Period: Inquiry
Contact: Anson
Email: info@tianfuchem.com

87-39-8

87-39-8 structure

87-39-8 structure

Name: violuric acid
Chemical Name: Violuric Acid Monohydrate
CAS Number: 87-39-8
Molecular Formula: C₄H₃N₃O₄
Molecular Weight: 157.08400
Catalog: Biochemical Chinese herbal medicine ingredients
Create Date: 2018-09-30 21:11:24
Modify Date: 2025-08-25 09:33:53
Violuric acid is a redox mediator used in the laccase system. The violuric acid assay is a method to ascertain that the high-redox potential of laccase is not lost during directed evolution[1][2].

Name	Violuric Acid Monohydrate
Synonyms	violuric acid MFCD00006032 EINECS 201-741-4

Description	Violuric acid is a redox mediator used in the laccase system. The violuric acid assay is a method to ascertain that the high-redox potential of laccase is not lost during directed evolution[1][2].
Related Catalog	Research Areas >> Others Signaling Pathways >> Others >> Others
References	[1]. Zhenyu Shi, et al. Enhanced Transformation of Emerging Contaminants by Permanganate in the Presence of Redox Mediators. Environ Sci Technol. 2020 Feb 4;54(3):1909-1919. [2]. Isabel Pardo, et al. Colorimetric High-Throughput Screening Assays for the Directed Evolution of Fungal Laccases. Methods Mol Biol. 2018;1685:247-254.

Density	2.19 g/cm3
Boiling Point	494.1ºCat 760 mmHg
Melting Point	240-250 °C (dec.)
Molecular Formula	C₄H₃N₃O₄
Molecular Weight	157.08400
Flash Point	252.6ºC
Exact Mass	157.01200
PSA	107.86000
Index of Refraction	1.813

CHEMICAL IDENTIFICATION

RTECS NUMBER :: BA4225000

CHEMICAL NAME :: Alloxan, 5-oxime

CAS REGISTRY NUMBER :: 87-39-8

LAST UPDATED :: 199712

DATA ITEMS CITED :: 2

MOLECULAR FORMULA :: C4-H3-N3-O4

MOLECULAR WEIGHT :: 157.10

WISWESSER LINE NOTATION :: T6MVMVYVJ EUNQ

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Intravenous

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 100 mg/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: CSLNX* U.S. Army Armament Research & Development Command, Chemical Systems Laboratory, NIOSH Exchange Chemicals. (Aberdeen Proving Ground, MD 21010) Volume(issue)/page/year: NX#05202

Hazard Codes	Xi
Risk Phrases	R36/37/38
Safety Phrases	S26-S36
WGK Germany	3
RTECS	BA4225000
HS Code	2933540000

Precursor 8
61066-33-9 69-93-2 412341-12-9 67-52-7
76-24-4 463-04-7 10544-73-7 7732-18-5
DownStream 10
480-68-2 511-67-1 83-88-5 699-40-1
118-78-5 120-89-8 124-47-0 17376-76-0
57-13-6 7147-37-7

HS Code	2933540000
Summary	2933540000 other derivatives of malonylurea (barbituric acid); salts thereof。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:6.5%。General tariff:20.0%

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