Flip Off Cap Vial Seal Black 13mm For Pharmaceutical
size: 13mm color: black material: aluminum-plastic Injection, vaccine, Medical, pharmaceutical
- Fast Delievery
- Quality Assurance
- 24/7 Customer Service
Full Customization
Description
Flip Off Cap Vial Seal · Black · 13mm · Pharmaceutical
Al-Plastic Composite · 2ml–5ml Vials · Oncology · High-Potency · USP Compliant
flip off cap vial seal black 13mm · pharmaceutical · oncology · high-potency injectable · Al-plastic composite
Black 13mm
Flip Off Cap Vial Seal
Pharmaceutical · Al-Plastic Composite · Black PP Tab · 2ml–5ml Vials · Oncology · High-Potency · USP Compliant
13mm size · black PP flip tab · aluminium crimp shell · ISO 8362-2 compatible · factory-direct · 48-hour sample dispatch
|
Black ★ PP tab colour |
13mm Cap size |
Al + PP Composite |
Flip off Tab format |
ISO 8362-2 Compatible |
2ml–5ml Vial range |
What the black 13mm flip off cap is
01
Aluminium crimp shell
Silver-grey Al · continuous skirt · crimp format
The aluminium component of the 13mm flip off cap is a precision-formed aluminium shell - a circular top disc and a continuous cylindrical skirt that wraps around the vial neck on crimping. The aluminium is typically a pharmaceutical-grade alloy in its natural silver-grey finish. When the cap is applied using a 13mm crimping machine (hand crimper, semi-automatic, or automatic), the bottom edge of the aluminium skirt rolls inward under the neck flange of the vial, locking the cap and stopper assembly permanently in position. The aluminium crimp cannot be reversed without visible evidence of tampering - providing the tamper evidence function of the vial seal.
✓ Pharmaceutical-grade aluminium alloy
✓ Continuous skirt - 360° coverage of vial neck
✓ Tamper evidence - crimp is irreversible
✓ Applied with standard 13mm crimping tooling
02
Black polypropylene flip tab
Black PP · top surface · snapped off before use
The black colour of this cap is the polypropylene (PP) flip tab - a disc of black-pigmented PP moulded to fit the central opening in the aluminium shell's top surface. The PP tab is held in position by the aluminium shell and sits flush with or slightly above the top surface of the cap. Before the vial is used, the healthcare worker or pharmacist grasps the black PP tab and snaps it off, exposing the rubber stopper beneath for needle access. The black PP colour provides the colour-coding function - the tab colour is visible from above and identifies the product or category at a glance. The PP material is inert and does not contact the drug product at any point.
✓ Black-pigmented PP - the colour-coding element
✓ Snapped off before needle access
✓ PP does not contact the drug product
✓ Colour visible from above - instant identification
03
13mm size - what vials it fits
13mm · ISO 8362-2 · 2ml–5ml tubular vials
The 13mm nominal size of this flip off cap corresponds to the 13mm neck finish defined by ISO 8362-2 for pharmaceutical tubular glass injection vials. The 13mm neck finish is standard on the small-volume pharmaceutical vial range: 2ml, 3ml, and 5ml tubular glass vials. This is the size used for single-dose peptide injectables, allergen extract vials, high-potency oncology concentrates, hormone preparations, and small-volume veterinary injectables. The 13mm cap size is distinct from the 20mm cap used on larger vials (5ml–50ml with 20mm neck finish) - the two sizes are not interchangeable.
✓ Fits 2ml, 3ml, and 5ml tubular glass vials
✓ 13mm ISO 8362-2 neck finish standard
✓ Not compatible with 20mm neck vials
✓ Matched with 13mm bromobutyl rubber stopper
The aluminium shell colour is silver - only the PP tab is black
A common point of confusion when ordering black vial caps: the black colour applies to the polypropylene flip tab only - the aluminium crimp shell surrounding it remains in its natural silver-grey aluminium finish. From the side, a black flip off cap on a vial shows a silver aluminium skirt with a black top tab. From above, the black PP disc is surrounded by a silver aluminium ring. This is the standard two-material construction for all pharmaceutical flip off caps - the cap colour refers to the PP tab colour throughout the industry. If you need a fully black cap (black aluminium shell plus black PP tab), that is a custom product requiring a separate enquiry; our standard stock black cap has a silver Al shell and black PP tab.
Black in pharmaceutical colour-coding - what it signals
Black vial cap - the colour-coding contexts where black is specified
Pharmaceutical vial cap colour-coding is an informal but widely adopted practice - colours are assigned to drug categories, product lines, or strength differentiators by individual institutions, manufacturers, and national formularies. Black as a cap colour carries specific associations across pharmaceutical injectable practice that make it a deliberate and meaningful specification choice.
| context |
why black is specified
|
typical product types
|
| products |
 |
 |
| Oncology injectables | High-potency, hazardous drug designation, premium branded oncology line; black conveys gravity and differentiation | Cytotoxic concentrates, monoclonal antibody injectables, targeted therapy agents, immunotherapy drugs |
| High-potency APIs | Visual signal for extreme caution; some organisations use black specifically for HPAPI-containing injectables | HPAPI injectables, potent analgesics, narrow therapeutic index drugs, controlled substance concentrates |
| Premium branded products | Brand differentiation and premium presentation; black conveys exclusivity and product quality in high-value segments | Branded biologics, premium hormone preparations, specialty pharmaceutical products |
| Research and lab vials | Colour differentiation in multi-product research environments; black for high-value or priority samples | Reference standards, research drug substances, high-value analytical samples |
| Veterinary specialty | Premium veterinary injectable products using black to signal high-value or specialty formulations | Equine performance products, companion animal oncology, specialty veterinary biologics |
| Product line distinction | Multi-SKU line using black to distinguish a specific formulation, strength, or route within a product family | Any product family requiring a high-contrast, distinctive cap colour separate from standard coding colours |
Colour-coding is not mandated by pharmacopoeial standards - it is a manufacturer and institutional decision
No pharmacopoeial standard (USP, EP, BP) mandates specific cap colours for specific drug categories. Colour-coding is a voluntary practice - determined by the drug manufacturer's internal standards, hospital formulary conventions, or national guidance where applicable. The choice of black for a specific product is entirely at the discretion of the filling organisation. When switching from one supplier's black cap to another (including our product), verify that the black shade and finish of the physical cap match your existing stock and your internal standard before placing a production order - request a physical sample for comparison.
Applications - products filled in black-capped 13mm vials
Three segments that drive demand for black 13mm caps - and why each uses black
The black 13mm flip off cap is specified across three principal pharmaceutical and research segments - each with a distinct reason for choosing black over the standard pharmaceutical colours.
Oncology drug products and cytotoxic injectables
Black is the most consistently used cap colour in the oncology injectable segment - chosen by branded oncology manufacturers for its strong visual identity, its association with high-value and high-potency products, and its distinctiveness in the pharmacy or hospital dispensing environment where multiple oncology products may be stored together. In 2ml and 3ml small-format vials, oncology concentrates (for dilution into IV bags), targeted therapy agents, and immunotherapy biologics are commonly presented with black caps to facilitate identification and differentiate from non-oncology products in the same storage area.
Cytotoxic injectable concentrates (2ml, 3ml formats)
Monoclonal antibody oncology injectables
Targeted kinase inhibitor and ADC injectables
Immunotherapy checkpoint inhibitor concentrates
High-potency and narrow therapeutic index injectables
Highly potent injectable drugs - where the therapeutic dose is in the microgram-per-kilogram range and where dosing errors carry serious consequences - are sometimes coded with black caps as a visual caution signal within hospital pharmacy systems. This is particularly common for analgesic concentrates (morphine, hydromorphone, fentanyl concentrates in small vials), immunosuppressant injectables, and high-dose corticosteroids where the high-potency nature of the product warrants an immediately distinguishable cap colour. The 2ml tubular vial with black 13mm cap is common for concentrated analgesic and sedative preparations in both human and veterinary settings.
Concentrated analgesic injectables (2ml vials)
Immunosuppressant concentrate for dilution
High-dose corticosteroid injections
Sedative and anaesthetic agent vials
Specialty peptides, research injectables, and premium branded
Outside the hospital oncology and high-potency contexts, black 13mm caps are used by specialty pharmaceutical manufacturers and compounders for premium branding - the black cap signals a high-value, specialty product in a small vial. Peptide compounders producing 2ml vials of research peptides, growth hormone, or IGF-1 preparations frequently use black caps as a consistent premium identifier. Research laboratories packaging high-value reference standards and pharmacokinetic study samples in 2ml vials also favour black as the most visually distinct and serious-looking colour available in the standard pharmaceutical colour range.
Research peptide 2ml vials (compounded)
Premium branded specialty injectable products
Pharmacokinetic and toxicology study vials
High-value reference standards in 2ml format
Compliance, labelling, and regulatory notes
Compliance for the black 13mm flip off cap - USP <7>, ISO 8362, and colour safety
The black 13mm flip off cap vial seal must meet the same pharmaceutical packaging standards as any other vial cap colour. The black PP pigmentation does not change the compliance requirements, but there are regulatory and labelling notes specific to this colour that users should be aware of.
USP <7> - labelling on the flip tab
USP <7> (Labelling) restricts the placement of tradenames, brand names, and proprietary identifiers on the top surface (flip tab) of vial caps for injectable drug products intended for the US market. The restriction applies regardless of cap colour - a black flip tab is subject to the same USP <7> restriction as a red, blue, or any other coloured tab. For US injectable products, brand or product identifiers may only appear on the aluminium skirt side of the cap, not on the black PP tab top surface.
The black colour itself is not a "labelling" element under USP <7> - colour-coding is not subject to this restriction. The restriction applies only to words, logos, symbols, and tradenames printed or embossed on the tab top surface. A plain black flip tab with no text or logo present is fully compliant with USP <7>.
ISO 8362 compatibility and standard compliance
The black 13mm flip off cap is dimensionally compatible with the 13mm neck finish defined by ISO 8362-2 for pharmaceutical tubular glass injection vials. The cap dimensions - outer diameter, skirt depth, and crimp geometry - are consistent with the ISO 8362 standard, and the cap is applied and crimped using standard 13mm pharmaceutical crimping equipment (hand crimpers, semi-automatic, or automatic inline crimpers). No special tooling is required for the black cap compared to any other colour in the 13mm range.
The PP pigment used for the black tab is pharmaceutical grade - tested for extractables and migration in line with the requirements for PP components used in pharmaceutical primary packaging contact parts. CoA documentation confirming material grade and pigment compliance is available on request.
Black PP pigmentation - not a toxicology concern for the cap as used
A question that occasionally arises for dark-pigmented pharmaceutical caps: does the black PP pigment represent a leachable risk for the drug product? The answer is no, for a structural reason: the PP flip tab does not contact the drug product at any point in the product's life cycle. The PP tab sits on the outside of the aluminium shell top, above the rubber stopper. There is no pathway by which PP pigment could migrate into the drug formulation through the rubber stopper and glass neck. The rubber stopper is the primary contact barrier between the drug product and the closure system, and the rubber stopper's extractables are the subject of container-closure integrity and extractables programmes - not the PP cap component above it.
complete specifications
Black 13mm flip off cap vial seal - full specification reference
Complete reference specifications for the pharmaceutical black 13mm flip off cap vial seal.
| Parameter | Specification / value | Notes |
|---|---|---|
| Product identity | ||
| Product type | Flip off cap vial seal ★ | Tab-removal format |
| Cap colour | Black PP flip tab ★ | PP tab colour; Al shell is silver |
| Nominal size | 13mm | ISO 8362-2 neck finish |
| Construction | Aluminium shell + PP flip tab | Two-material composite |
| Dimensions and compatibility | ||
| Vial neck finish | 13mm · ISO 8362-2 | Tubular vial standard |
| Compatible vial volumes | 2ml · 3ml · 5ml | Small injection vial range |
| Matched stopper | 13mm bromobutyl rubber stopper | Standard or PTFE coated |
| Crimping tooling | Standard 13mm die | Hand / semi-auto / auto |
| Al skirt type | Continuous cylinder | 360° coverage |
| Compliance and materials | ||
| ISO standard | ISO 8362-2 compatible | Neck finish match |
| PP material grade | Pharmaceutical-grade PP | CoA available |
| PP pigment | Black - pharmaceutical grade | Pigment compliance CoA available |
| USP <7> note | Logo on Al skirt only - not tab top | US injectable products |
| Supply | ||
| Sample | Free - black 13mm flip off cap | 48-hour dispatch |
| Matched kit sample | Vial + 13mm black cap + stopper | On request |
| MOQ (indicative) | 5,000 pcs | Confirm at enquiry |
| Other sizes available | 20mm black flip off cap | On request |
Who orders the black 13mm flip off cap
Black 13mm flip off cap - who buys and why
The black 13mm flip off cap is ordered by a specific and consistent buyer profile - organisations filling small-volume injectable vials (2ml–5ml) where black has been selected as the cap colour for reasons of oncology product coding, high-potency caution signalling, premium brand positioning, or institutional colour-coding convention.
Oncology pharmaceutical manufacturers
Cytotoxic · mAb · targeted therapy · 2ml–3ml
Manufacturers of branded and generic oncology injectable products in 2ml and 3ml vials - using black caps as the product colour code for their oncology line, consistent with internal brand standards and oncology market conventions.
Compounding pharmacies - specialty injectable
Peptide · analgesic · custom Rx · 2ml
Sterile compounding pharmacies preparing custom oncology preparations, peptide injectables, concentrated analgesics, and specialty Rx injectables in 2ml vials where black is the established house colour for premium or high-potency compounded products.
Research peptide producers
Research grade · 2ml vials · premium presentation
Companies and laboratories producing research-grade peptide preparations (GH, IGF-1, research peptides) in 2ml vials where the black cap conveys premium quality and is a consistent visual identifier for the research peptide product range.
Veterinary injectable manufacturers
Equine · companion animal · specialty Rx vet
Veterinary pharmaceutical manufacturers filling high-value equine and companion animal injectable products in 2ml–5ml vials, using black as the premium and specialty cap colour in their veterinary product range.
Clinical supply and IMP facilities
Phase I–III · investigational · oncology
Clinical supply units packaging oncology investigational medicinal products in 2ml vials for clinical trials - where black cap is specified in the product's packaging specification document and must be maintained across batch manufacture.
Pharmaceutical packaging distributors
Full colour range stock · B2B distribution
Packaging distributors stocking the full range of 13mm flip off cap colours for downstream pharmaceutical filler customers - carrying black as a standard stock item alongside the other twelve pharmaceutical cap colours in the 13mm range.
Black. 13mm. In stock. Sample in 48 hours.
Physical black 13mm flip off cap - confirm colour before committing to production quantity
Request a free physical sample of the black 13mm flip off cap - compare against your reference cap or current supplier. Matched kit (vial + black cap + 13mm stopper) also available. Confirm by return and bulk order within your lead time.
Hot Tags: Flip Off Cap Vial Seal Black 13mm For Pharmaceutical, China Flip Off Cap Vial Seal Black 13mm For Pharmaceutical manufacturers, suppliers, 32mm Flip Off Caps Seals, Light Blue Pharmaceutical Matte Flip Off Cap Vial Seals, Flip Off Cap, 20mm Flip Off Seal Blank Cap, Flip Off Cap for Injection Vial
Send Inquiry
You Might Also Like
