City Chemical LLC manufactures Ammonium Carbamate (CAS 1111-78-0), a white crystalline powder supplied at a 99% minimum specification for use as a synthesis intermediate and as a solid, measurable source of ammonia and carbon dioxide. Typical assay is 99.7%. Because ammonium carbamate sublimes at 60–61°C, consistency in handling and packaging matters as much as consistency in assay — our process is built to deliver both, so chemists and production teams can work from a dependable specification rather than adjusting to each shipment.
City Chemical LLC is a privately-held, woman-owned chemical manufacturer headquartered in West Haven, Connecticut. Backed by more than a century of combined operating history, we specialize in rare, unusual, and hard-to-find chemicals that are difficult to source elsewhere. Every order is backed by our ResponseAbilityTM commitment — a dedication to speed, accuracy, and responsiveness at every stage of the chemical purchasing process. Whether you need a small lab-scale quantity or a large industrial order, our team works to deliver the exact specification, packaging, and turnaround your project requires.
Ammonium Carbamate: Chemical Properties and Specifications
| Property / Specification | Detail |
|---|---|
| Appearance | White crystalline |
| Form | Powder |
| Purity | 99+% |
| Melting Point | 60-61°C (sublimes) |
| Water Solubility | Readily soluble |
| pH | 10 (100 g/L, 20°C) |
| Molecular Formula | NH2CO2NH4 |
| Formula Weight | 78.07 g/mol |
| CAS Number | 1111-78-0 |
| EC Number | 214-185-2 |
| Relative Density | 1.600 g/cm3 |
| GHS Classification | Danger. Acute toxicity, oral, Category 4 (H302); skin irritation, Category 2 (H315); serious eye damage, Category 1 (H318); acute aquatic toxicity, Category 3 (H402). |
| Transport (DOT/IATA) | UN 3077, Class 9, Packing Group III (Environmentally hazardous substances, solid, n.o.s.). Reportable quantity 5,000 lbs. Not regulated as dangerous goods under IMDG. |
| Storage | 2-8°C, dry, tightly closed |
| Product / Item Numbers | A190-BULK (bulk), A190-50KG (50 kilogram), A190-5KG (5 kilogram), A190-500GM (500 gram) |
Source: City Chemical LLC Certificate of Analysis, Lot 62H49 (August 27, 2026); Safety Data Sheet, Product No. A190 (revised 01/2026).
Common Uses & Applications: intermediate in urea and carbamate synthesis, carbamylating agent in organic chemistry, solid source of ammonia and carbon dioxide for laboratory and process use, and a reagent in agricultural and fertilizer chemistry.
Ammonium Carbamate for Specialized Industries
Ammonium carbamate is the salt formed when ammonia and carbon dioxide combine, and it behaves as a convenient solid carrier for both. Heating reverses the reaction, which is why the compound sits at the center of industrial urea chemistry and why synthetic chemists reach for it when they need a carbamyl group delivered without handling gases directly. Its ready water solubility and low sublimation point are the properties that make it useful, and they are also the properties that make specification consistency and proper packaging matter.
As an Ammonium Carbamate manufacturer, City Chemical LLC supplies process chemists, synthesis labs, and production teams across chemical intermediates, agricultural chemistry, and pharmaceutical manufacturing. Pack sizes run from 500-gram laboratory quantities through 50-kilogram and bulk orders, so a customer can qualify the material at bench scale and stay with the same supplier and the same specification through scale-up.
Why Choose City Chemical?
Benefits of Choosing City Chemical Over Other Chemical Manufacturers
- Ammonium Carbamate, 99% min. purity, available for qualified chemical buyers
- Quantities from 500 grams through 50 kilograms and bulk
- Lot-specific Certificate of Analysis with every order
- U.S.-based sourcing and support from West Haven, Connecticut
- Experience serving research, industrial, aerospace, military, and semiconductor markets
- Responsive customer service from a knowledgeable chemical supply team
- A broad catalog of rare, unusual, and hard-to-find chemicals
Responsive Chemical Sourcing and Custom Packaging
At City Chemical, ResponseAbilityTM is our commitment to giving every customer a faster, more reliable chemical purchasing experience — from first inquiry through final delivery. For a compound that sublimes near 60°C and is recommended for cold storage, that means packaging selected to keep the material sealed and stable in transit and in storage, with documentation that matches what arrives.
We offer custom, UN-certified packaging tailored to your process, whether you need sealed 500-gram containers for bench work or 50-kilogram and bulk quantities for continuous production.
Quality Backed by More Than a Century of Experience
City Chemical’s reputation is built on more than a century of combined experience supplying rare and high-purity chemicals to demanding industries. As a U.S.-based manufacturer, we support reshoring and supply-chain resilience, helping customers reduce risk and transit time while maintaining the strict quality standards our customers expect on every order.
Whether you are running a carbamylation step at the bench, formulating in agricultural chemistry, or sourcing a production-scale intermediate, City Chemical is ready to be your trusted source for Ammonium Carbamate.
Order Ammonium Carbamate
Ready to source Ammonium Carbamate for your next project? Contact City Chemical LLC today to request a quote, discuss packaging options, or ask a technical question. Our knowledgeable team is standing by to help you get the exact specification you need, delivered on your timeline.