|
|
|
Substance Name: Cytosine
RN: 71-30-7
UNII: 8J337D1HZY
InChIKey: OPTASPLRGRRNAP-UHFFFAOYSA-N
Note
- A pyrimidine base that is a fundamental unit of nucleic acids.
Classification Code
- Mutation Data
Molecular Formula
- C4-H5-N3-O
Molecular Weight
- 111.1035
- All
- Links to Resources
- Names & Synonyms
- Registry Numbers
- Structure Descriptors
- Toxicity
- Physical Properties
* denotes mobile formatted website
Links to Resources
NLM Resources (File Locators)
Regulatory Agencies (Superlist Locators)
Other Resources (Internet Locators)
Search for this InChIKey on the Web
Names and Synonyms
Name of Substance
- Cytosine
MeSH Heading
- Cytosine
Synonyms
- 4-Amino-2(1H)-pyrimidinone
- 4-Amino-2-hydroxypyrimidine
- AI3-52281
- Cyt
- Cytosine
- Cytosinimine
- EC 200-749-5
- EINECS 200-749-5
- NSC 27787
- UNII-8J337D1HZY
Systematic Names
- 2(1H)-Pyrimidinone, 4-amino-
- 2(1H)-Pyrimidinone, 6-amino-
- Cytosine
Registry Numbers
CAS Registry Number
- 71-30-7
FDA UNII
- 8J337D1HZY
Other Registry Numbers
- 118511-36-7
- 1268833-99-3
- 149297-78-9
- 14987-28-1
- 26661-23-4
- 504-05-2
- 66322-75-6
- 66398-98-9
- 66460-16-0
- 66460-17-1
- 80275-67-8
- 88733-25-9
- 918399-36-7
System Generated Number
- 0000071307
Structure Descriptors
InChI
InChI=1S/C4H5N3O/c5-3-1-2-6-4(8)7-3/h1-2H,(H3,5,6,7,8)InChIKey
OPTASPLRGRRNAP-UHFFFAOYSA-NSmiles
NC1=NC(=O)Toxicity
| Organism | Test Type | Route | Reported Dose (Normalized Dose) | Effect | Source |
|---|---|---|---|---|---|
| mouse | LD50 | intraperitoneal | > 2222mg/kg (2222mg/kg) | BEHAVIORAL: CHANGES IN MOTOR ACTIVITY (SPECIFIC ASSAY) BEHAVIORAL: SOMNOLENCE (GENERAL DEPRESSED ACTIVITY) | Journal of Pharmacology and Experimental Therapeutics. Vol. 207, Pg. 504, 1978. |
Physical Properties
| Physical Property | Value | Units | Temp (deg C) | Source |
|---|---|---|---|---|
| Melting Point | 322.5 dec | deg C | EXP | |
| log P (octanol-water) | -1.73E+00 | (none) | EXP | |
| Water Solubility | 8000 | mg/L | 25 | EXP |
| Vapor Pressure | 1.09E-03 | mm Hg | 25 | EST |
| Henry's Law Constant | 4.81E-11 | atm-m3/mole | 25 | EST |
| Atmospheric OH Rate Constant | 5.58E-11 | cm3/molecule-sec | 25 | EST |
Physical property data is provided to ChemIDplus by SRC, Inc.