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2920-92-5

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2920-92-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 2920-92-5 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 2,9,2 and 0 respectively; the second part has 2 digits, 9 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 2920-92:
(6*2)+(5*9)+(4*2)+(3*0)+(2*9)+(1*2)=85
85 % 10 = 5
So 2920-92-5 is a valid CAS Registry Number.
InChI:InChI=1/C4H4N2O2/c7-3-1-2-5-4(8)6-3/h1-2H,(H2,5,6,7,8)/i4+2

2920-92-5SDS

SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 18, 2017

Revision Date: Aug 18, 2017

1.Identification

1.1 GHS Product identifier

Product name 1H-pyrimidine-2,4-dione-14C

1.2 Other means of identification

Product number -
Other names -

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:2920-92-5 SDS

2920-92-5Relevant articles and documents

Structural Evidence for a [4Fe-5S] Intermediate in the Non-Redox Desulfuration of Thiouracil

Au?ynait?, Agota,Boll, Matthias,Fontecave, Marc,Fuchs, Jonathan,Golinelli-Pimpaneau, Béatrice,Me?kys, Rolandas,Pecqueur, Ludovic,Rutkien?, Rasa,Urbonavi?ius, Jaunius,Vaitekūnas, Justas,Zhou, Jingjing

supporting information, p. 424 - 431 (2020/11/30)

We recently discovered a [Fe-S]-containing protein with in vivo thiouracil desulfidase activity, dubbed TudS. The crystal structure of TudS refined at 1.5 ? resolution is reported; it harbors a [4Fe-4S] cluster bound by three cysteines only. Incubation of TudS crystals with 4-thiouracil trapped the cluster with a hydrosulfide ligand bound to the fourth non-protein-bonded iron, as established by the sulfur anomalous signal. This indicates that a [4Fe-5S] state of the cluster is a catalytic intermediate in the desulfuration reaction. Structural data and site-directed mutagenesis indicate that a water molecule is located next to the hydrosulfide ligand and to two catalytically important residues, Ser101 and Glu45. This information, together with modeling studies allow us to propose a mechanism for the unprecedented non-redox enzymatic desulfuration of thiouracil, in which a [4Fe-4S] cluster binds and activates the sulfur atom of the substrate.

Green production process of uracil

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Paragraph 0043-0045; 0046-0048; 0049-0052; 0053-0062, (2021/04/14)

The invention relates to the field of chemistry, and particularly provides a green production process of uracil, which comprises the following steps: cyclizing 3-alkoxy (amino) acrylate (amide) and urea alkali metal salt, acidifying, and converting into uracil with the yield of more than 95%.

Anion exchange resins in phosphate form as versatile carriers for the reactions catalyzed by nucleoside phosphorylases

Artsemyeva, Julia N.,Buravskaya, Tatiana N.,Esipov, Roman S.,Konstantinova, Irina D.,Litvinko, Natalia M.,Mikhailopulo, Igor A.,Miroshnikov, Anatoly I.,Remeeva, Ekaterina A.

, p. 2607 - 2622 (2020/11/26)

In the present work, we suggested anion exchange resins in the phosphate form as a source of phosphate, one of the substrates of the phosphorolysis of uridine, thymidine, and 1-(β-D-arabinofuranosyl)uracil (Ara-U) catalyzed by recombinant E. coli uridine (UP) and thymidine (TP) phosphorylases. α-D-Pentofuranose-1-phosphates (PF-1Pis) obtained by phosphorolysis were used in the enzymatic synthesis of nucleosides. It was found that phosphorolysis of uridine, thymidine, and Ara-U in the presence of Dowex 1X8 (phosphate; Dowex-nPi) proceeded smoothly in the presence of magnesium cations in water at 20-50 °C for 54-96 h giving rise to quantitative formation of the corresponding pyrimidine bases and PF-1Pis. The resulting PF-1Pis can be used in three routes: (1) preparation of barium salts of PF-1Pis, (2) synthesis of nucleosides by reacting the crude PF-1Pi with an heterocyclic base, and (3) synthesis of nucleosides by reacting the ionically bound PF-1Pi to the resin with an heterocyclic base. These three approaches were tested in the synthesis of nelarabine, kinetin riboside, and cladribine with good to excellent yields (52-93%).

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