Sulfamerazine
- CAS No.
- 127-79-7
- Chemical Name:
- Sulfamerazine
- Synonyms
- SMI;Sulphamerazine;A-310;rp2632;DEBENAL;2643-RP;Mebacid;Mesulfa;Romezin;RP 2632
- CBNumber:
- CB0693512
- Molecular Formula:
- C11H12N4O2S
- Molecular Weight:
- 264.3
- MDL Number:
- MFCD00023212
- MOL File:
- 127-79-7.mol
- MSDS File:
- SDS
- TDS File:
- TDS
| Product description | Number | Pack Size | Price |
| Sulfamerazine European Pharmacopoeia (EP) Reference Standard | S2000000 | 100 mg | $167 |
| Sulfamerazine VETRANAL , analytical standard | 46826 | 250mg | $72 |
| Sulfamerazine United States Pharmacopeia (USP) Reference Standard | 1628007 | 500mg | $404 |
| Sulfamerazine | U0176 | 25G | $70 |
| Sulfamerazine | U0176 | 100G | $210 |
| More product size | |||
| Melting point | 234-238°C |
|---|---|
| Boiling point | 519.1±52.0 °C(Predicted) |
| Density | 1.3364 (rough estimate) |
| refractive index | 1.6440 (estimate) |
| storage temp. | 2-8°C |
| solubility | DMSO (Slightly), Methanol (Slightly) |
| form | Solid |
| pka | pKa 2.29(H2O t = 24.0 I = 0.5 (NaCl)) (Uncertain) |
| color | White to Off-White |
| Water Solubility | 202mg/L(20 ºC) |
| Merck | 14,8913 |
| BRN | 249133 |
| InChI | 1S/C11H12N4O2S/c1-8-6-7-13-11(14-8)15-18(16,17)10-4-2-9(12)3-5-10/h2-7H,12H2,1H3,(H,13,14,15) |
| InChIKey | QPPBRPIAZZHUNT-UHFFFAOYSA-N |
| SMILES | Cc1ccnc(NS(=O)(=O)c2ccc(N)cc2)n1 |
| CAS DataBase Reference | 127-79-7(CAS DataBase Reference) |
| FDA 21 CFR | 556.660; 558.4; 558.582 |
| FDA UNII | UR1SAB295F |
| ATC code | D06BA06,J01ED07 |
| NIST Chemistry Reference | Sulfamerazine(127-79-7) |
| EPA Substance Registry System | Benzenesulfonamide, 4-amino-N-(4-methyl-2-pyrimidinyl)- (127-79-7) |
| UNSPSC Code | 41116107 |
| NACRES | NA.24 |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |  GHS07 |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Signal word | Warning | |||||||||
| Hazard statements | H302 | |||||||||
| Precautionary statements | P264-P270-P301+P312-P501 | |||||||||
| Hazard Codes | Xi | |||||||||
| Risk Statements | 36/37/38 | |||||||||
| Safety Statements | 26-36/37 | |||||||||
| WGK Germany | 2 | |||||||||
| RTECS | WP0750000 | |||||||||
| F | 10 | |||||||||
| TSCA | TSCA listed | |||||||||
| HS Code | 2935904000 | |||||||||
| Storage Class | 11 - Combustible Solids | |||||||||
| Hazard Classifications | Acute Tox. 4 Oral | |||||||||
| Toxicity | LD50 oral in mouse: 25gm/kg | |||||||||
| NFPA 704 |
|
Sulfamerazine price More Price(60)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich | S2000000 | Sulfamerazine European Pharmacopoeia (EP) Reference Standard | 127-79-7 | 100 mg | $167 | 2026-04-30 | Buy |
| Sigma-Aldrich | 46826 | Sulfamerazine VETRANAL , analytical standard | 127-79-7 | 250mg | $72 | 2026-04-30 | Buy |
| Sigma-Aldrich | 1628007 | Sulfamerazine United States Pharmacopeia (USP) Reference Standard | 127-79-7 | 500mg | $404 | 2026-04-30 | Buy |
| TCI Chemical | U0176 | Sulfamerazine | 127-79-7 | 25G | $70 | 2026-04-30 | Buy |
| TCI Chemical | U0176 | Sulfamerazine | 127-79-7 | 100G | $210 | 2026-04-30 | Buy |
Sulfamerazine Chemical Properties,Uses,Production
Chemical Properties
White Solid
Originator
Sulfamerazine,Lederle,US,1943
Uses
Antibacterial.This compound is a contaminant of emerging concern (CECs).
Definition
ChEBI: A sulfonamide consisting of pyrimidine with a methyl substituent at the 4-position and a 4-aminobenzenesulfonamido group at the 2-position.
Manufacturing Process
To a well agitated solution of 6.95 grams of 2-amino-6-methyl pyrimidine in
40 cc of pyridine, 15 grams of p-acetylaminobenzenesulfonyl chloride are
added in small portions over a 30 minute period. The reaction mixture is then
heated on a steam bath for 30 minutes, the free pyridine being then removed
under reduced pressure and the residue mixed with cold water, and the latter
mixture is vigorously stirred. The solid reaction product is removed by
filtration and washed with cold water.
There is obtained a yield of 14 grams of crude 2-(pacetylaminobenzenesulfonamido)-
6-methyl pyrimidine, which on
recrystallization from alcohol and water melts at 238° to 239°C. The crude
product is hydrolyzed by suspending it in 400 cc of 2 N hydrochloric acid and
warming until solution is complete. The solution is neutralized with sodium
carbonate and the precipitated 2-(sulfanilamido)-6-methyl pyrimidine is
removed by filtration. The latter on recrystallization from alcohol and water
shows a melting point of 225° to 226°C.
Therapeutic Function
Antibacterial
Antimicrobial activity
Like all examined sulfanilamides, this drug is effective in treating infections caused by streptococci, gonococci, pneumococci, staphylococci, and also colon bacillus. Synonyms of this drug are dosulfin, polagin, romezin, and others.
General Description
Chemical structure: sulfonamide
Pharmaceutical Applications
2-Sulfonamido-4-methylpyrimidine. A component of some triple sulfa combinations. Plasma half-life is c. 24 h and protein binding c. 75%. It is less active than sulfadiazine.
Safety Profile
Moderately toxic by intravenous and subcutaneous routes. Experimental reproductive effects. When heated to decomposition it emits very toxic fumes of NO, and SOx,.
Synthesis
Sulfamerazine, N1 -(4-methyl-2-pyrimidinyl)sulfanilamide (33.1.12), is also synthesized in the manner described above, which is by reacting 4-acetylaminobenzenesulfonyl chloride with 2-amino-4-methylpyrimidine (33.1.10), which is in turn synthesized by the traditional scheme of synthesizing derivatives of pyrimidine. Acetoacetic ester is condensed with guanidine to give 4-methyl-2-aminopyrimidin-6-one (33.1.8). Reacting this with phosphorous oxychloride gives 4-methyl-2-amino-6-chloropyrimidine (33.1.9). The chlorine atom at C6 of the pyrimidine ring is then removed by reduction with hydrogen using a palladium on carbon catalyst. The resulting 4-methyl-2-aminopyrimidine (33.1.10) is then reacted with 4-acetylaminobenzenesulfonyl chloride to make an acetanilide derivative (33.1.11), the subsequent hydrolysis of which with base leads to the formation of the desired sulfamerazine.
Sulfamerazine Preparation Products And Raw materials
Raw materials
Preparation Products
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| Shaanxi TNJONE Pharmaceutical Co., Ltd | +8618092446649 | sarah@tnjone.com | China | 1143 | 58 |
| Henan Tianfu Chemical Co.,Ltd. | +86-0371-55170693 +86-19937530512 | info@tianfuchem.com | China | 21585 | 55 |
| Hefei TNJ Chemical Industry Co.,Ltd. | +86-0551-65418679 +8618949832763 | info@tnjchem.com | China | 2988 | 55 |
| career henan chemical co | +86-0371-86658258 +8613203830695 | sales@coreychem.com | China | 29812 | 58 |
| Xiamen AmoyChem Co., Ltd | +86-86-5926051114 +8615060885618 | sales@amoychem.com | China | 6366 | 58 |
| CONIER CHEM AND PHARMA LIMITED | +8618523575427 | sales@conier.com | China | 49979 | 58 |
| SIMAGCHEM CORP | +86-5922680277 +86-13806087780 | sale@simagchem.com | China | 17346 | 58 |
| TargetMol Chemicals Inc. | +1-781-999-5354; +17819995354 | marketing@targetmol.com | United States | 32466 | 58 |
| Hubei Ipure Biology Co., Ltd | +8613367258412 | ada@ipurechemical.com | China | 10236 | 58 |
| Hefei TNJ Chemical Industry Co.,Ltd. | +86-0551-65418671 +8618949823763 | sales@tnjchem.com | China | 34563 | 58 |
View Lastest Price from Sulfamerazine manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
 |
2026-06-30 | Sulfamerazine
127-79-7
|
1kg | 98% | 1000kg | Shaanxi Dideu New Materials Co. Ltd | ||
 |
2026-06-05 | Sulfamerazine
127-79-7
|
$58.00 | 99.78% | 10g | TargetMol Chemicals Inc. | ||
 |
2026-06-05 | Sulfamerazine
127-79-7
|
$58.00 | 99.78% | 10g | TargetMol Chemicals Inc. |
-
- Sulfamerazine
127-79-7
- 98%
- Shaanxi Dideu New Materials Co. Ltd
-
- Sulfamerazine
127-79-7
- $58.00
- 99.78%
- TargetMol Chemicals Inc.
-
- Sulfamerazine
127-79-7
- $58.00
- 99.78%
- TargetMol Chemicals Inc.
