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Guanine
- CAS
- 73-40-5
- Potency
- 98.0% ~ 102.0% (HPLC Tested, typical batch result: 98.8%-98.9%)
- Grade
- Pharmaceutical Intermediate Grade, Food Grade, Cosmetic Grade, Feed Grade
- Form
- Powder
- Specification
- ≥98%
- MOQ
- 25 kg
- Formula
- C5H5N5O
- MW
- 151.13
- Package
- 25kg drum
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E-mail:Product Overview & Core Technical Identity
SUNWAY supplies high-purity Synthetic Guanine (CAS:73-40-5) fully complying with internal enterprise standards and USP reference specifications. Guanine is a core natural purine nucleobase that constitutes DNA & RNA, widely adopted as key pharmaceutical intermediate, food flavor enhancer, cosmetic pearlescent raw material and feed nutrition additive. Our product adopts advanced chemical synthesis & multi-stage recrystallization purification technology, featuring ultra-low single impurity, strict heavy metal control and stable batch-to-batch consistency. Every batch undergoes full HPLC comprehensive testing and 12-month sealed sample retention to realize complete quality traceability. Flexible order options cover small 5kg lab trial bags to ton-level bulk cartons, and mixed consolidated shipment with other purine/pyrimidine raw materials, vitamins and amino acids is supported to lower customers' integrated procurement & logistics costs.
Technical Identity
Test Items |
Standards |
Test Results |
Appearance |
White to cream-white powder |
Qualified |
Identification |
Complies with reference IR spectrum |
Qualified |
Color of Solution |
Not deeper than reference solution Y5 |
Qualified |
Loss on Drying |
<=1.0% |
0.43% / 0.38% |
Assay |
98.0% - 102.0% |
98.80% / 98.90% |
HPLC Purity |
>=99.0% |
99.91% / 99.91% |
Single Impurity |
<=0.5% |
0.09% / 0.09% |
Residue on Ignition (Ash) |
<=0.2% |
0.04% / 0.07% |
Heavy Metals (as Pb) |
<=10 ppm |
<10 ppm / <10 ppm |
Arsenic (As) |
<=2 ppm |
<2 ppm / <2 ppm |
Physiological Functions & Industry Application Logic
Guanine is an essential endogenous purine base existing in all animal, plant and microbial cells, with multi-dimensional industrial value across pharmacy, food, cosmetic and feed sectors:
Core Pharmaceutical Synthetic Intermediate Guanine is the fundamental starting raw material for mass production of nucleoside antiviral drugs including Acyclovir, Ganciclovir, Valacyclovir and Ribavirin. It undergoes derivatization reaction to form guanosine, gMP, cGMP, which are key active substances for anti-herpes, anti-virus and anti-tumor preparations.
Food Umami Enhancer Precursor Guanine can be converted into guanosine monophosphate (GMP), a high-intensity natural flavor enhancer widely used in seasonings, instant food, dairy and nutritional beverages to boost delicate umami taste without extra salt intake.
Cosmetic Pearlescent & Brightening Raw Material Guanine microcrystal forms layered light-reflecting structure, delivering natural soft pearly luster in eye shadow, nail polish, shampoo and body care lotion; meanwhile it assists epidermal cell metabolism for mild brightening effect.
Animal Nutrition Immune Booster As purine nutrition supplement for livestock, poultry and aquatic animals, guanine optimizes nucleic acid synthesis in animal cells, accelerates young animal growth, improves anti-stress ability and enhances fur gloss & meat quality.
Life Science Research Reagent Standard high-purity guanine serves as reference substance for DNA/RNA synthesis experiment, gene editing and microbiology metabolic research in laboratories.
Key Property Reminder: Guanine is practically insoluble in pure water, soluble in dilute acid & alkaline solution; stable under normal temperature, avoid long-term contact with strong oxidants to prevent degradation.
Sunway Packaging, Supply & Delivery Capacity
Standard Packaging Specifications
Small Trial Batch: 5kg double-layer moisture-proof & light-shield aluminum foil sealed bag, nitrogen optional for long-term storage
Industrial Bulk Shipment: 25kg opaque fiber drum with inner PE anti-hygroscopic liner, dust-proof and anti-light degradation during ocean/land transit
Custom Service: Private label printing, customized mesh fineness and customized compound purine premix packaging for long-term cooperative manufacturers
Stable Spot Inventory & Production Capacity
SUNWAY maintains year-round sufficient spot stock of high-purity synthetic Guanine without seasonal stockout risks. We establish long-term stable cooperation with certified professional synthesis manufacturers, independent separated stock zones for pharma/food/cosmetic/feed grades to avoid cross-contamination, stable monthly output fully meets mass procurement demand of pharmaceutical factories, food seasoning brands, cosmetic enterprises and feed mills.
Mixed Consolidated Shipment Support
Guanine can be consolidated with Adenine, Cytosine, Uracil, vitamins and amino acids into one full container, eliminating separate delivery charges and cutting customers' total procurement & warehouse management costs.
Global Export Logistics & Lead Time
Main Export Regions: Western Europe, Southeast Asia, North America, Latin America, Middle East
Professional logistics team with rich customs clearance experience for pharmaceutical intermediates, food additives and feed raw materials
Sample Order Lead Time: 1-3 working days after deposit confirmation
Bulk Industrial Order Lead Time: 7-10 working days after deposit payment
Shipment Options: Sea freight, air freight, customer-designated forwarder, full real-time order tracking service
Authorized Industrial Application Scenarios
4.1 Pharmaceutical Intermediate Manufacturing
Applicable Finished Drugs: Acyclovir, Ganciclovir, Ribavirin, purine series API & nucleotide raw materials Core Matching Advantages: Ultra-low single & total impurities, strictly controlled heavy metal index, fully matches synthesis route requirements of antiviral nucleoside drugs, supports large-scale continuous production.
4.2 Food & Seasoning Additives
Applicable Finished Goods: Chicken essence, soy sauce, compound seasonings, instant noodles, fortified dairy, nutritional solid drinks Core Value: Precursor of GMP umami agent, stable under conventional food high-temperature sterilization and baking process, compliant with food additive safety limits.
4.3 Cosmetic Raw Materials
Applicable Finished Goods: Pearlescent shampoo, eye shadow, nail polish, brightening body lotion, repairing facial cream Core Value: Natural soft pearlescent effect, mild non-irritating to skin, compatible with oil-water dual cosmetic emulsification systems.
4.4 Animal Feed Additives
Applicable Finished Goods: Piglet starter premix, laying hen compound feed, fish & shrimp aquatic feed, pet nutritional supplements Core Value: Supplement purine nutrition, promote animal cell proliferation, improve growth speed and disease resistance, reduce feed conversion ratio.
4.5 Laboratory Research Reagents
Applicable Scenarios: DNA/RNA synthesis experiment, gene editing research, microbial metabolism analysis, university lab standard reference substance Core Value: HPLC purity >=99.91%, consistent batch quality, meets laboratory analytical testing standards.
Full-Cycle QC & Compliance Credentials
SUNWAY Four-Stage Full Process Quality Control System
Raw Material Incoming Inspection: All synthetic crude guanine passes full HPLC impurity, heavy metal and appearance testing before warehousing; unqualified raw materials are strictly rejected.
Intermediate Process Monitoring: Real-time temperature & pH control during recrystallization and drying procedures; regular sampling test of purity and loss on drying.
Finished Product Full-Index HPLC Detection: Every finished batch completes all test items as per enterprise standard, covering assay, HPLC purity, single impurity, ash and heavy metal limits.
12-Month Batch Sample Retention Mechanism: Sealed light-proof representative samples of each batch are preserved for 12 months to support full quality traceability for any after-sales quality verification.
Complete Export Documents Provided Per Shipment
Official Batch COA with full HPLC chromatogram data
MSDS / SDS Global Safety Data Sheet
TDS Technical Datasheet
Non-GMO & Allergen Free Statement
Halal, Kosher supporting documents available upon request
Global Compliance Standards
Pharmaceutical Grade meets USP reference substance requirements; Food Grade complies with global food additive safety specifications; Cosmetic Grade conforms EU cosmetic raw material heavy metal limits; Feed Grade matches domestic feed additive standard. Separate impurity control thresholds for four grades to satisfy cross-border import inspection demands.
Storage, Handling & Shelf Life Guidance
Standard Storage Environment
Store unopened intact packaging in cool, dry, fully light-proof warehouse with controlled temperature 10-25C, relative humidity <=60%. Strictly isolate from direct sunlight, high-temperature equipment and strong oxidizing chemical reagents.
Post-Opening Handling Tips
Seal packaging tightly with moisture-proof tape immediately after each use, and finish consumption within 30 days. For 25kg bulk drums, transfer surplus material into nitrogen-filled foil bags to avoid moisture absorption and discoloration.
Special Operation Reminder
Avoid long-term exposure to humid air during weighing and batching operations; guanine is stable under normal processing temperature, avoid prolonged heating above 100C.
Valid Shelf Life
24 months under intact original sealed, light-shield standard storage; all assay, impurity and heavy indicators are fully guaranteed within the expiry date.
Sunway Core Competitive Advantages
Graded Independent Inventory & Production Control Separate repacking and storage workshops for pharma/food/cosmetic/feed grade Guanine to eliminate cross-contamination, targeted strict impurity control for pharmaceutical intermediate grade to meet API synthesis high-standard demands.
Professional Synthetic Formula Technical Support Our R&D team provides free one-to-one technical guidance on guanine derivatization synthesis, food flavor matching and cosmetic pearlescent formula optimization, solve precipitation and purity fluctuation pain points in downstream production. Custom purine compound premix development service available.
Complete Standardized Export Documentation System Full set of standardized export papers with complete HPLC test data attached to batch COA, fully meet customs inspection and third-party laboratory re-test demands of EU, USA, Southeast Asia and other global markets.
Flexible Tiered Pricing & Diversified Order Matching 5kg small trial orders supported for lab research and new product R&D; favorable tiered prices for 500kg and 1MT large bulk shipments, balancing small-batch testing demand and mass production cost control.
Stable Long-Term Upstream Synthesis Supply Chain Long-term strategic cooperation with large certified guanine synthesis manufacturers, stable batch purity consistency without periodic quality fluctuation or raw material shortage risk.
Looking for a Reliable Guanine Supplier?
If you are seeking stable, high-purity Guanine with complete international compliance documents, Sunway (Hangzhou) Biotechnology Co., Ltd. is your reliable China partner.
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