Basic information
- Standard SMILES
Cc1cc(C)nc(NS(=O)(=O)c2ccc(N)cc2)n1- InChIKey
ASWVTGNCAZCNNR-UHFFFAOYSA-N- Molecular formula
- C12H14N4O2S
- Average molar mass
- 278.33 g/mol
- Monoisotopic mass
- 278.08374688
Names & identifiers
- Preferred name
- Sulfamethazine
- IUPAC
- 4-amino-N-(4,6-dimethylpyrimidin-2-yl)benzenesulfonamide
- English name
- 2-(4-Aminobenzenesulfonamido)-4,6-dimethylpyrimidine
- Molecular formula
- C12H14N4O2S
- Molecular weight
- 278.33
Names & synonyms
Show more names
Database identifiers
- CAS
57-68-1- PubChem CID
- 5327
- DTXSID
DTXSID6021290- ChEMBL
CHEMBL446- ChEBI
CHEBI:102265- UNII
- 48U51W007F
- EC Number
- 200-346-4
- Nikkaji
- J106.516E
Properties
Computed structural properties
- XLogP
- 0.3
- Topological polar surface area
- 106 Ų
- Hydrogen bond donors
- 2
- Hydrogen bond acceptors
- 6
- Rotatable bonds
- 3
- Heavy atoms
- 19
- Formal charge
- 0
- Complexity
- 377
Physicochemical properties
- Melting point
- 197 °C · 197 °C
- Boiling point
- 294 °C · 294°C (rough estimate)
- Density
- 1.2997 · 1.2997 (rough estimate)
- refractive index
- 1.644 · 1.6440 (estimate)
- storage temp.
- 2 · 2-8°C
- solubility
- 50 mg/mL · acetone: soluble50mg/mL
- form
- Crystalline Powder
- pka
- 7.4 · 7.4, 2.65(at 25℃)
- color
- white to off-white
- Water Solubility
- 150 mg/100mL · 150mg/100mL (29 ºC)
- Merck
- 14 · 14,8905
- BRN
- 261304 · 261304
- Henry's Law Constant
- 3.2 · 3.2×107 mol/(m3Pa) at 25℃, HSDB (2015)
- Stability
- Stable, but light sensitive. Incompatible with strong oxidizing agents.
- InChI
- 1S/C12H14N4O2S/c1-8-7-9(2)15-12(14-8)16-19(17,18)11-5-3-10(13)4-6-11/h3-7H,13H2,1-2H3,(H,14,15,16)
- InChIKey
- ASWVTGNCAZCNNR-UHFFFAOYSA-N
- SMILES
- Cc1cc(C)nc(NS(=O)(=O)c2ccc(N)cc2)n1
- CAS DataBase Reference
- 57 · 57-68-1(CAS DataBase Reference)
- FDA 21 CFR
- 556.67 · 556.670; 558.4
- FDA UNII
- 48 U51W007F · 48U51W007F
- ATC code
- 1 EB03 · J01EB03
- NIST Chemistry Reference
- Sulfamethazine(57-68-1)
- IARC
- 3 · 3 (Vol. 79) 2001
- EPA Substance Registry System
- Sulfamethazine (57-68-1)
- UNSPSC Code
- 51284910 · 51284910
- NACRES
- 85 · NA.85
- Symbol(GHS)
- 8 · GHS08
- Signal word
- Danger
- Hazard statements
- 362 · H362-H315-H334-H317-H319
- Precautionary statements
- 264 · P264-P280-P302+P352-P321-P332+P313-P362-P261-P272-P280-P302+P352-P333+P313-P321-P363-P501-P264-P280-P305+P351+P338-P337+P313P-P201-P260-P263-P264-P270-P308+P313-P261-P285-P304+P341-P342+P311-P501
- Hazard Codes
- Xi
- Risk Statements
- 36 · 36/37/38
- Safety Statements
- 23 · 23-24/25-36-26
- WGK Germany
- 2 · 2
- RTECS
- 9275000 · WO9275000
- F
- 10 · 10
- TSCA
- TSCA listed
- HS Code
- 29350090 · 29350090
- Storage Class
- 11 · 11 - Combustible Solids
- Hazardous Substances Data
- 57 · 57-68-1(Hazardous Substances Data)
- Toxicity
- 50 i.p · LD50 i.p. in mice: 1.06 g/kg (Bobranski)
- REACH Registrations
- Active
Safety & regulation
Safety data
- F
- 10
- wgk
- 2
- tsca
- TSCA listed
- rtecs
- WO9275000
- hs_code
- 29350090
- Toxicity
- LD50 i.p. in mice: 1.06 g/kg (Bobranski)
- risk_code
- 36/37/38
- Signal word
- Danger
- Symbol(GHS)
- GHS08
- hazard_code
- Xi
- safety_code
- 23-24/25-36-26
- Storage Class
- 11 - Combustible Solids
- Hazard statements
- H362-H315-H334-H317-H319
- REACH Registrations
- Active
- Precautionary statements
- P264-P280-P302+P352-P321-P332+P313-P362-P261-P272-P280-P302+P352-P333+P313-P321-P363-P501-P264-P280-P305+P351+P338-P337+P313P-P201-P260-P263-P264-P270-P308+P313-P261-P285-P304+P341-P342+P311-P501
- Hazardous Substances Data
- 57-68-1(Hazardous Substances Data)
Chemistry & industry
Applications
DescriptionSulfamethazine is an antibacterial sulfonamide. Like other sulfonamides, sulfamethazine is bacteriostatic, competitively inhibiting dihydropteroate synthase to block folate synthesis and inhibit growth and multiplication. Sulfamethazine is metabolized by cytochrome P450 isoforms and arylamine N-acetyltransferase 2 in a sex-dependent manner.
UsesSulfamethazine is an antibacterial.This compound is a contaminant of emerging concern (CECs).
General DescriptionSulfamethazine’splasma half-life is 7 hours. This compound is similar inchemical properties to sulfamerazine and sulfadiazine butdoes have greater water solubility than either. Its pKa is 7.2.Because it is more soluble in acid urine than sulfamerazineis, the possibility of kidney damage from use of the drug isdecreased. The human body appears to handle the drugunpredictably; hence, there is some disfavor to its use in thiscountry except in combination sulfa therapy (in trisulfapyrimidines,USP) and in veterinary medicine.
General DescriptionOdorless sticky, white or creamy-white crystalline powder. Slightly bitter taste. An antibacterial.
Upstream & downstream products
Upstream raw materials
Downstream products
Suppliers50 total
Additional notes
DefinitionChEBI: A sulfonamide consisting of pyrimidine with methyl substituents at the 4- and 6-positions and a 4-aminobenzenesulfonamido group at the 2-position.
Related reactions
Linked notes
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