CAS 71-30-7

Cytosine

Description:

Cytosine is a pyrimidine nucleobase that plays a crucial role in the genetic coding of organisms. It is one of the four primary bases found in DNA and RNA, pairing with guanine in DNA and RNA structures. The chemical formula of cytosine is C4H5N3O, and it has a molecular weight of approximately 111.13 g/mol. Cytosine is characterized by its aromatic ring structure, which includes two nitrogen atoms and one carbonyl group, contributing to its ability to form hydrogen bonds with complementary bases. It is a white crystalline solid at room temperature and is soluble in water, which facilitates its biological functions. Cytosine can undergo various chemical modifications, such as methylation, which can influence gene expression and cellular processes. In addition to its biological significance, cytosine is also involved in various biochemical pathways and can be synthesized in the laboratory for research purposes. Its CAS number, 71-30-7, is a unique identifier used for regulatory and commercial purposes.

Formula: C₄H₅N₃O

InChI: InChI=1S/C4H5N3O/c5-3-1-2-6-4(8)7-3/h1-2H,(H3,5,6,7,8)

InChI key: InChIKey=OPTASPLRGRRNAP-UHFFFAOYSA-N

SMILES: NC=1NC(=O)N=CC1

Synonyms:

• 2(1H)-Pyrimidinone, 4-amino-
• 2(1H)-Pyrimidinone, 6-amino-
• 2-Hydroxy-4-pyrimidinamine
• 4-Amino-1H-pyrimidin-2-one
• 4-Amino-2(1H)-Pyrimidinone
• 4-Amino-2-hydroxypyrimidine
• 4-Amino-2-oxo-1,2-dihydropyrimidine
• 4-Aminopyrimidin-2-Ol
• 4-Aminouracil
• 6-Amino-2(1H)-pyrimidinone
• 6-aminopyrimidin-2(1H)-one
• Aurora Ka-682
• Citosina
• Cytosin
• Cytosines
• Cytosinimine
• Nsc 27787
• Pyrimidin(1H)-2-One, 4-Amino-

Cytosine

CAS: 71-30-7

Formula: C₄H₅N₃O

Purity: >98.0%(T)(HPLC)

Color and Shape: White powder to crystal

Molecular weight: 111.10

Ref: 3B-C0528

Cytosine, 98+%

CAS: 71-30-7

Cytosine is a nucleoside used for proteomics research. It is also used as an enzyme substrate or precursor of effector molecules such as cytosine sugars. This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information m

Formula: C₄H₅N₃O

Purity: 98+%

Color and Shape: White to pale cream to pale yellow, Crystals or powder or crystalline powder

Molecular weight: 111.10

Ref: 02-A14731

GEMCITABINE IMPURITY A CRS

CAS: 71-30-7

GEMCITABINE IMPURITY A CRS

Ref: 41-Y0000676

Cytosine

CAS: 71-30-7

Compounds containing a pyrimidine ring, whether or not hydrogenated, or piperazine ring in the structure, nesoi

Formula: C₄H₅N₃O

Color and Shape: White Off-White Powder

Molecular weight: 111.1

Ref: 45-1162148

Cytosine

CAS: 71-30-7

Formula: C₄H₅N₃O

Purity: 98%

Color and Shape: Solid

Molecular weight: 111.1020

Ref: IN-DA0034OD

Cytosine

CAS: 71-30-7

Cytosine

Purity: ≥98%

Molecular weight: 111.1g/mol

Ref: 54-BUP18197

Cytosine

CAS: 71-30-7

Formula: C₄H₅N₃O

Purity: ≥ 99.0%

Color and Shape: White to off-white crystalline powder

Molecular weight: 111.10

Ref: 7W-GE8084

Cytosine

CAS: 71-30-7

Cytosine

Formula: C₄H₅N₃O

Purity: 98%

Color and Shape: white powder

Molecular weight: 111.10g/mol

Ref: 54-OR18333

Cytosine-5,6-d2

CAS: 106391-24-6, 71-30-7

Ref: 3U-D6872

4-Aminopyrimidin-2(1H)-one (Cytosine)

CAS: 71-30-7

Color and Shape: Neat

Ref: 86-MM0749.05

Cytosine

CAS: 71-30-7

Cytosine

Formula: C₄H₅N₃O

Purity: By hplc: 99.4% by area (Typical Value in Batch COA)

Color and Shape: white to off-white powder

Molecular weight: 111.10g/mol

Ref: 54-BIC0713

Cytosine (Gemcitabine EP Impurity A, Lamivudine EP Impurity E, Cytarabine EP Impurity C)

CAS: 71-30-7

Formula: C₄H₅N₃O

Molecular weight: 111.10

Ref: 4Z-C-956

Cytosine

CAS: 71-30-7

Cytosine is a pyrimidine nucleic acid base; its deamination can cause mutations in leukemia and cancer.

Formula: C₄H₅N₃O

Purity: 99.67%

Color and Shape: Solid

Molecular weight: 111.1

Ref: TM-T4832

Cytosine

CAS: 71-30-7

Applications Widely distributed in nature; constituent of nucleic acids.
References Hunter, H., et al.: Biochem. J., et al.: 31, 486 (1937),

Formula: C₄H₅N₃O

Color and Shape: White Solid

Molecular weight: 111.10

Ref: TR-C998950

Gemcitabine EP Impurity A

CAS: 71-30-7

Formula: C₄H₅N₃O

Molecular weight: 111.10

Ref: ST-EA-CP-G7001

Lamivudine EP Impurity E

CAS: 71-30-7

Formula: C₄H₅N₃O

Molecular weight: 111.10

Ref: ST-EA-CP-L3005

Cytosine

CAS: 71-30-7

Formula: C₄H₅N₃O

Purity: 98%

Color and Shape: Solid, Crystalline Powder or Powder

Molecular weight: 111.104

Ref: 10-F036359

Cytosine ExiPlus, Multi-Compendial, 99%

CAS: 71-30-7

Formula: C₄H₅N₃O

Purity: min. 99%

Color and Shape: White to almost white, Crystalline powder

Molecular weight: 111.10

Ref: SR-10323

Cytosine extrapure, 99%

CAS: 71-30-7

Formula: C₄H₅N₃O

Purity: min. 99%

Color and Shape: White to off- white, Crystalline powder

Molecular weight: 111.10

Ref: SR-13886

Cytosine

CAS: 71-30-7

Pyrimidine nucleobase; component of nucleic acids

Formula: C₄H₅N₃O

Purity: (Hplc) Min. 99%

Color and Shape: White Powder

Molecular weight: 111.1 g/mol

Ref: 3D-FC03781

Gemcitabine EP Impurity A (Cytosine, Lamivudine EP Impurity E)

CAS: 71-30-7

Formula: C₄H₅N₃O

Molecular weight: 111.10

Ref: 4Z-G-2614