|
HS Code |
285686 |
| Name | Histidine |
| Chemical Formula | C6H9N3O2 |
| Molecular Weight | 155.15 g/mol |
| Iupac Name | 2-amino-3-(1H-imidazol-4-yl)propanoic acid |
| Cas Number | 71-00-1 |
| Appearance | White crystalline powder |
| Melting Point | 277 °C (dec.) |
| Solubility In Water | 41 g/L (25 °C) |
| Pka1 | 1.8 (carboxyl group) |
| Pka2 | 9.2 (amino group) |
| Isoelectric Point | 7.6 |
| Essentiality | Essential amino acid |
| Chirality | L-form in proteins |
| Side Chain | Imidazole |
As an accredited Histidine factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | Histidine, 100g, packaged in a sealed, amber glass bottle with chemical-resistant label displaying product details and safety information. |
| Shipping | Histidine is shipped as a stable, non-hazardous amino acid under normal conditions. Standard packaging includes sealed containers or bags to prevent moisture absorption. Store and transport it in cool, dry conditions with proper labeling. No special shipping regulations apply, but ensure all relevant safety guidelines and documentation are followed during transit. |
| Storage | Histidine should be stored in a tightly sealed container, protected from light, moisture, and air. It should be kept in a cool, dry, and well-ventilated area, ideally at room temperature (15–25°C). Avoid contact with incompatible substances such as strong oxidizing agents. Properly label the container and ensure it is stored according to standard laboratory safety guidelines. |
|
Purity 99%: Histidine Purity 99% is used in pharmaceutical formulations, where it ensures high bioavailability and safety for intravenous solutions. Molecular Weight 155.15 g/mol: Histidine Molecular Weight 155.15 g/mol is used in biochemical research buffers, where it provides precise pH stabilization for enzyme assays. Particle Size <10 µm: Histidine Particle Size <10 µm is used in cell culture media, where it enhances solubility and promotes uniform nutrient distribution. Stability Temperature 2–8°C: Histidine Stability Temperature 2–8°C is used in diagnostic reagent storage, where it maintains chemical integrity and assay reliability. Melting Point 287°C: Histidine Melting Point 287°C is used in heat-sterilizable injectable preparations, where it allows formulation stability under autoclaving conditions. Endotoxin Level <0.1 EU/mg: Histidine Endotoxin Level <0.1 EU/mg is used in bioprocessing applications, where it minimizes immunogenic risks in therapeutic protein production. Optical Rotation +8°: Histidine Optical Rotation +8° is used in chiral pharmaceutical synthesis, where it ensures enantiomeric purity for active pharmaceutical ingredients. Water Content <0.5%: Histidine Water Content <0.5% is used in lyophilized biological products, where it extends shelf-life and prevents microbial growth. Heavy Metals <10 ppm: Histidine Heavy Metals <10 ppm is used in injectable drug manufacturing, where it improves patient safety by reducing toxic impurities. UV Absorbance 260 nm <0.02: Histidine UV Absorbance 260 nm <0.02 is used in analytical reference standards, where it ensures minimal interference for spectrophotometric analyses. |
Competitive Histidine prices that fit your budget—flexible terms and customized quotes for every order.
For samples, pricing, or more information, please contact us at +8615365186327 or mail to sales3@ascent-chem.com.
We will respond to you as soon as possible.
Tel: +8615365186327
Email: sales3@ascent-chem.com
Flexible payment, competitive price, premium service - Inquire now!
Histidine tells a clear story about the real work that goes into making ingredients fit for science, health, and specialty industries. Each batch comes off the line because our crew knows what precision looks like. Histidine matters to us not just as a chemical but as the result of years of refining our own process. This amino acid lands in so many places—biopharma, lab nutrition, even fermentation tanks—because it meets standards we hold onto at every step. Friends in research, colleagues in food development, and specialists in diagnostics all look for pure, stable material, and we’ve made it our business to solve challenges in quality and consistency before it ever reaches a customer site.
Our L-Histidine stands out because the team focuses on tight control from raw material to final pack-out. Real life on the line teaches you quickly—sloppy handling invites contamination, so we train with one eye always on trace metals, water content, and pH. Uniform flow and high recovery rates only come when everything works right, so we calibrate equipment often and tailor each production run according to the best yields from recent runs. This isn’t about maintaining some vague “quality standard”—it’s about making sure the next shipment matches the last, down to the most stubborn decimal in the analysis.
Lab techs who sign off on every lot know what’s behind those data points. Batches with histidine hydrochloride look neat on paper, but we keep pushing for improvement in free base forms for those partners who want more control in their formulations. Our process makes it possible to choose between these: customers working on cell culture sometimes want the free base for finer pH balancing, while food producers say they get smoother blending with the hydrochloride salt. We only suggest a form if we know it’s the right fit, and that recommendation traces back to the feedback from real users, not trend reports.
Numbers mean something different here than they do on a sales sheet. Purity above 99 percent isn’t a show-off figure—it keeps our customer’s finished goods reliable. Particle size affects mixing, so before we ever ship, our QC lab measures granulometry because a pharmaceutical plant doesn’t want to wrestle with dusting or clumping any more than we do. Water content? Microbiologists and those in parenteral solutions watch that closely, because a little extra moisture can make or break stability. We dry, test, and repeat until it falls right in line with the tightest protocols.
For color and clarity, our crew trains eyes along with instruments. A slightly off-white histidine shows up before spectrographs pick it up sometimes, and that tells you whether the purification ran clean or if we need another pass. Because we process bulk for pharmaceutical manufacturers and ingredient suppliers, keeping the specs tight means fewer hold-ups for them downstream. Our regular batches usually come in crystal or fine powder form. Shipment sizes depend on job orders, but every container closes only after a final environmental check—no chance for cross-contamination or excess exposure.
We see more demand from cell culture and fermentation than ever before. Biotech crews aren’t looking for buzzwords—they want amino acid feeds that support high cell viability. Our histidine steps in because, from fermentation days on the floor, we learned that small impurities trigger reactions down the line. It’s no theory; one unexpected compound, and the protein yield goes sideways. So our operators watch over every filter, avoid leaching, and double-check tanks because the results in the customer’s bioreactor depend on this extra step.
Clinical nutrition partners know how crucial stability feels. Powders sit in warehouses; liquids must stay shelf-stable. Their teams often flag any batch that wavers out of range, so we run real-time and accelerated stability testing. For hospital use, we filter both for bacteria and fine particles, holding each lot until it clears sterility checks. In contrast, dietary supplement clients need assurance over non-GMO sourcing and allergen statements. Requests started small, but we had to adapt: certifying ingredient origins, tightening supply lines, and keeping detailed traceability. The result—histidine backed by both science and paperwork—grew out of conversations on the production floor, not just management meetings.
On the food ingredient side, partners aiming for sports nutrition or infant formula care about taste and mouthfeel more than a spec table. Their R&D teams come to us because consistent solubility means easier blending, smoother formulation, and fewer surprises in the final product. Our process includes pilot-scale testing and end-use sampling—real food, real performance. Histidine isn’t just about nutrition numbers; it’s about working batch after batch to meet flavor and color targets while keeping performance predictable.
Sourcing for histidine doesn’t always look like a global hunt, but each step matters. We stick to direct raw ingredient contracts whenever we can because every layer between us and the original supply means more risk. If an agricultural or fermentation-based input comes in off-spec, our batch slows down, and so does every customer relying on that order. That’s one big part of keeping a factory competitive—chasing shortcuts in procurement often leads to longer time spent managing recalls or troubleshooting batches.
Some products on the market get repacked and rebadged across continents. Our model is different: we don’t buy surplus, relabel, or blend to stretch production. Instead, we lock down every lot’s timeline, from input to finished goods, with sampling and tracking locked in by both human and technical checks. By controlling this process, documentation always matches the test results because our teams handled every step in-house.
Feedback isn’t a polite checkbox here. Changes in customer process—like a production switch from roller compaction to direct compression—tell us exactly which particle size we need to target for the next order. A chemist reporting filter clogging gives us instant direction; we’re adjusting screens and dryer time before the next campaign starts. This feedback loop never really ends, and it drives most of our upgrades. Instrumentation changes, tweak in reaction time, and even shifts in packaging all link back to real conversations after a batch lands with a user.
Our regulatory lead stays neck-deep in evolving pharmacopeia requirements. If an update rolls out, everyone up and down the line—operators, lab specialists, and managers—sits down to cover the new points. Sometimes that means running a couple extra impurity checks or responding to trace heavy metal limits. We treat every new challenge not as a hurdle, but as another target to beat before paperwork and shipments go out. For international partnerships, pulling required analysis certificates, kosher and halal compliance, and country-of-origin paperwork has become part of daily rhythm on the floor.
Histidine wins its place in a plant or research lab through more than spec compliance—real safety and stability come from tough routines. Our operators walk routines that include spot checks for dust, glove changes, and exact mixing temperatures. This gives end users confidence in the traceability and safety of every lot, not just because it passed a list, but because it moved through hands trained by years of habit and problem-solving.
Requests for allergen-free production areas have increased, so we built clear batches—no shared lines, color-coded zones, clean-down routines suited for zero cross-contact. Each tool gets logged, and air quality is verified. Customers on tight regulatory timelines value not just paperwork saying “allergen control,” but proof through plant visits and video audits showing those controls in action. We welcome that—transparency built this part of our business, and nothing makes a worker more alert than knowing a real observer is watching every step.
We see every step of waste handling here. Histidine production produces spent solvents and spent process water. Instead of letting waste management stay out of sight, we take the time to neutralize, treat, and recover as much as possible. Partners look for ISO 14001 and local regulator sign-off, but we set bigger targets—less discharge, tighter air and water monitoring, more material recycled on the spot. Our waste streams get tracked as closely as the main product. Recovering solvents lowers both impact and production expense in the long haul.
Energy usage gets tracked per batch. Efficiency conversations don’t live only in management emails here; ideas from operators about heat recapture, improved insulation, or load balancing on compressors show up in reduced overhead and cleaner process footprints. We found most energy improvements did not require big capital—just steady input from people running shifts, spotting patterns and fine-tuning equipment. The pride in doing cleaner work flows from there and matches with what our partners in pharmaceuticals and food ask of us.
Each drum of histidine coming out of our plant carries a full story—raw input checks, production logs, QC release, and final pack records. It’s not just about passing audits—it’s solving issues before the product leaves our property. If a user flags something unusual in solution, we pull documentation, run a re-check, and go eye-to-eye with the production timeline. Every operator signs off on their stage, and that collective accountability runs deeper than any printed label.
Feedback, both negative and positive, cycles back to continuous improvement. Every time a partner calls about unexpected color shift in their finished goods, our teams run troubleshooting down to the root—finishing with updated wash sequences or tweaks to purification timing. Years doing this built our trust. Supply chain hiccups, process tweaks, and customer formula changes all get absorbed into how the next round of histidine goes out the door.
Partners considering which histidine variant to use ask questions about salt forms, flow characteristics, and batch-to-batch reliability. We support choices with both test data and practical advice: L-Histidine free base gives tighter control in fine pH adjustments in fermenters, while the hydrochloride salt delivers easier handling and better stability in prepackaged blends. Choices depend on application, and we share insights drawn from both our own line trials and partner feedback, not just textbook recommendations.
For injectable grade or parenteral use, teams often lean toward material with stricter trace element and particulate limits. We suggest batches produced in clean-room settings, with low bioburden and validated cleaning logs. Analytical verification—down to low ppb levels for some contaminants—becomes the new baseline. It’s not about following rules for rules’ sake; small differences here keep a hospital formulation safe and effective. We talk talent and protocol, but also human factors—alert teams, incident reporting, zero complacency—and those elements don’t get captured on technical sheets.
Shipping histidine across borders raises its own challenges. Our logistics crew tries to cut down risk: climate-controlled containers, tamper-proof seals, and rechecked manifests before anything moves out. Customs teams want more than paperwork—they need confidence the product that left our site matches exactly what comes off the truck. Every export and import stage faces another layer of checks, so we double down on prepping advance documentation and work to clean up confusion ahead of ship dates. Our support doesn’t end at the dock: remote troubleshooting, follow-up sampling, and deep reports on every anomaly keep the trust in place, regardless of continent.
Where recalls or quality issues show up in the industry, we look straight to our own process for lessons. Real traceability, handled by real people who care about each shipment, shortens response times and makes learning possible. Continuous review—whether prompted by customer request or regulatory change—improves the next campaign. Because we handle each batch from end to end, we take both the blame when issues surface and the credit when lots clear without a single hitch.
Making histidine as a factory—rather than packaging or reselling—gives us leverage to solve customer challenges directly. Every process upgrade, each batch refinement, and all troubleshooting relies on experience earned here, not traded through intermediaries. Our pride sits in solving headaches before they travel downstream. That experience, built batch by batch, now forms the ground under every promise we make to partners in science, medicine, and production.
From start to finish, histidine only stays relevant if it delivers every time it leaves our plant. The hands-on experience from employees on mixing lines, analysts in the lab, and feedback from the users themselves all feed the improvements we make—each step in the line crafted for the next shipment, the next formula, the next real challenge. And we keep going, because the next customer will expect the same—histidine made right, start to finish.