CompoundList
Sign in
Fluorescent dyes and stains

Cryptocyanin

Also known as Cryptocyanine, Kryptocyanine, 1,1'-Diethyl-4,4'-carbocyanine iodide

CAS 4727-50-8Formula C25H25IN2Molar mass 480.39 g/molEC 225-224-8
GHS signal word: Danger. Pictograms: Acute toxicity (severe), Harmful or irritant 1 supplier listed
Get quotes See the supplier
Cryptocyanin chemical structure, C25H25IN2, CAS 4727-50-8
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
4727-50-8
Formula
C25H25IN2
Molar mass
480.39 g/mol
EC number
225-224-8
HS code
293349
Category
Fluorescent dyes and stains

What is Cryptocyanin?

Plain description, key identifiers and synonyms

Cryptocyanin is a member of quinolines and an organic iodide salt. It has a role as a fluorochrome. It contains a cryptocyanin cation.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
(4E)-1-ethyl-4-[(E)-3-(1-ethylquinolin-1-ium-4-yl)prop-2-enylidene]quinoline iodide
CAS number
4727-50-8 CAS number cross-checkedOther or deprecated CAS: 12655-94-6
EC number
225-224-8
Molecular formula
C25H25IN2
MDL number
MFCD00011970
InChIKey
CEJANLKHJMMNQB-UHFFFAOYSA-M
InChI
InChI=1S/C25H25N2.HI/c1-3-26-18-16-20(22-12-5-7-14-24(22)26)10-9-11-21-17-19-27(4-2)25-15-8-6-13-23(21)25;/h5-19H,3-4H2,1-2H3;1H/q+1;/p-1
Canonical SMILES
CCN1C=CC(=CC=Cc2cc[n+](CC)c3ccccc23)c2ccccc21.[I-]
Isomeric SMILES
CCN1C=C/C(=C\C=C\C2=CC=[N+](C3=CC=CC=C23)CC)/C4=CC=CC=C41.[I-]

Synonyms

  • Cryptocyanine
  • Kryptocyanine
  • 1,1'-Diethyl-4,4'-carbocyanine iodide
  • 1,1'-Diethylquino-(4)-carbocyanine iodide
  • 1,1'-Diethyl-4,4'-quinocarbocyanine iodide
  • 1-ethyl-4-[3-(1-ethylquinolin-4(1H)-ylidene)prop-1-en-1-yl]quinolinium iodide
  • Quinolinium, 1-ethyl-4-(3-(1-ethyl-4(1H)-quinolinylidene)-1-propenyl)-, iodide
  • crytocyanine
  • 1-ethyl-4-(3-(1-ethylquinolin-4(1H)-ylidene)prop-1-en-1-yl)quinolinium iodide
  • Quinolinium, 1-ethyl-4-(3-(1-ethyl-4(1H)-quinolylidene)propenyl)-, iodide
  • 1,1'-diethyl-4,4'-carbocyanine
  • 1Ethyl4(3(1ethyl4(1H)quinolylidene)prop1enyl)quinolinium iodide
  • Quinolinium, 1ethyl4(3(1ethyl4(1H)quinolylidene)propenyl), iodide
  • Quinolinium, 1ethyl4(3(1ethyl4(1H)quinolinylidene)1propenyl), iodide
  • Quinolinium, 1ethyl4(3(1ethyl4(1H)quinolinylidene)1propen1yl), iodide (1:1)
  • Quinolinium, 1-ethyl-4-(3-(1-ethyl-4(1H)-quinolinylidene)-1-propen-1-yl)-, iodide (1:1)
  • Quinolinium, 1-ethyl-4-[3-(1-ethyl-4(1H)-quinolinylidene)-1-propen-1-yl]-, iodide (1:1)
  • Cryptocyanine iodide
  • Kryptocyanin
  • Kryptocyanine iodide
  • 1-Ethyl-4-(3-(1-ethylquinolin-4(1H)-ylidene)prop-1-en-1-yl)quinolin-1-ium iodide
  • 1,1-Diethyl-4,4-carbocyanine iodide
  • (4E)-1-ethyl-4-[(Z)-3-(1-ethylquinolin-1-ium-4-yl)prop-2-enylidene]quinoline, iodide
  • 1-ethyl-4-[3-(1-ethylquinolin-1-ium-4-yl)prop-2-enylidene]quinoline, iodide
  • 1-ethyl-4-{(e)-3-[1-ethyl-4(1h)-quinolinylidene]-1-propenyl}quinolinium iodide
Show all 27 synonyms
  • (4E)-1-ethyl-4-[(E)-3-(1-ethylquinolin-1-ium-4-yl)prop-2-enylidene]quinoline, iodide
  • 1-Ethyl-4-(3-(1-ethylquinolin-4(1H)-ylidene)prop-1-en-1-yl)quinolin-1-iumiodide

Physical and chemical properties

Measured values and descriptors computed from the structure

Physical and chemical properties

Measured values, check the supplier specification for your grade

No measured properties are recorded for this substance yet. Ask suppliers for a technical data sheet.

Values vary by grade. Ask suppliers for the COA or TDS of the batch you buy.

Computed descriptors

Calculated from the structure, useful for screening and formulation

Molecular weight
480.39 g/molcalc.
Exact mass
480.1062 Dacalc.
LogP (octanol/water)
2.6calc.
Topological polar surface area
7.12 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
1calc.
Rotatable bonds
4calc.
Heavy atoms
28calc.
Rings
4calc.
Aromatic rings
3calc.
Fraction sp3 carbons
0.16calc.
Formal charge
0calc.
Stereocentres
0calc.
Components
2calc.
Lipinski rule of five
Passes (0 violations)calc.

Calculated for screening. Confirm critical figures with the supplier.

Murcko scaffold

The ring system that remains when every side chain is removed

Murcko scaffold of this chemical, C(=Cc1ccnc2ccccc12)C=C1C=CNc2ccccc21

C(=Cc1ccnc2ccccc12)C=C1C=CNc2ccccc21

4 rings, 23 atoms.

5 other chemicals share this scaffold

Safety and hazards

GHS classification summary, not a safety data sheet

GHS signal word
Danger
GHS06: Acute toxicity (severe)
Acute toxicity (severe)
GHS07: Harmful or irritant
Harmful or irritant

Hazard statements

  • H300Fatal if swallowed.
  • H315Causes skin irritation.
  • H319Causes serious eye irritation.
  • H335May cause respiratory irritation.
Precautionary statements (19)
  • P261Avoid breathing dust, fume, gas, mist, vapours or spray.
  • P264Wash skin thoroughly after handling.
  • P264 + P265Wash skin thoroughly after handling. Do not touch eyes.
  • P270Do not eat, drink or smoke when using this product.
  • P271Use only outdoors or in a well-ventilated area.
  • P280Wear protective gloves, protective clothing, eye protection and face protection.
  • P301 + P316If swallowed: Get emergency medical help immediately.
  • P302 + P352If on skin: Wash with plenty of water.
  • P304 + P340If inhaled: Remove person to fresh air and keep comfortable for breathing.
  • P305 + P351 + P338If in eyes: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
  • P319Get medical help if you feel unwell.
  • P321Specific treatment (see supplemental first aid instructions on the label).
  • P330Rinse mouth.
  • P332 + P317If skin irritation occurs: Get medical help.
  • P337 + P317If eye irritation persists: Get medical help.
  • P362 + P364Take off contaminated clothing. And wash it before reuse.
  • P403 + P233Store in a well-ventilated place. Keep container tightly closed.
  • P405Store locked up.
  • P501Dispose of contents and container in accordance with local regulations.

GHS classification summary, not a safety data sheet (SDS). Classifications can differ by supplier, grade and concentration. Always check the supplier's SDS.

Full safety data and first aid

Cryptocyanin suppliers

Sponsored listings first, then the documented ranking: membership, verification, replies, completeness, freshness and ratings

See the supplier

Suppliers marked Unclaimed profile have not claimed their profile yet. They are not verified by CompoundList, their offers are price on request and details may have changed, so please confirm them with the supplier. Company representatives can claim a profile with a business email on the company's own website domain. Our team verifies each claim and sends the result by email.

Where suppliers are based

1 supplier in 1 country

Send one request to many suppliers

Choose up to 10 suppliers or let us match your request. Compare quotes side by side, free.

Choose suppliersPost a request

Cryptocyanin price

Indicative price range per kg from live supplier offers

No published prices right now

Suppliers quote this chemical on request. Send one free request and compare quotes side by side.

Get latest price

Uses and applications

What the substance is used for, by industry and function

Roles

  • dye
  • fluorescent dye
  • fluorochrome

Regulatory status

Inventories, regulations and trade controls that list this substance

United States

  • TSCA inventory (USA)
    Status: Active in US commerce

HS code and trade data

Customs classification and reported world trade statistics

Global trade

World import and export statistics for the HS code Cryptocyanin is traded under.

HS 2933.49Indicative HS code

Compounds containing in the structure a quinoline or isoquinoline ring-system (whether…

World exports in 2024
$939M
−14.6% vs 2023, imports $1.48B
2019 to 2024
Top exporters
  1. China30.1%
  2. India * partner reported16.7%
  3. Switzerland * partner reported14.1%
Top importers
  1. United Kingdom19.2%
  2. Germany16.0%
  3. Romania8.3%

* Partner reported figures, a lower bound.

Reported customs values in USD, not prices.Full trade data

The HS code shown for Cryptocyanin is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about Cryptocyanin, based on the data on this page

What is Cryptocyanin?

Cryptocyanin is a member of quinolines and an organic iodide salt. It has a role as a fluorochrome. It contains a cryptocyanin cation.

What is the CAS number of Cryptocyanin?

The CAS registry number of Cryptocyanin is 4727-50-8. Other or deprecated CAS numbers: 12655-94-6.

What is the molecular formula and weight of Cryptocyanin?

The molecular formula of Cryptocyanin is C25H25IN2 and its molar mass is 480.39 g/mol.

What is Cryptocyanin used for?

Known uses and roles of Cryptocyanin include dye, fluorescent dye and fluorochrome.

Is Cryptocyanin hazardous?

Cryptocyanin carries the GHS signal word "Danger". Main hazards: fatal if swallowed, causes skin irritation, causes serious eye irritation. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of Cryptocyanin?

Cryptocyanin is usually classified under HS code 293349 (Compounds containing in the structure a quinoline or isoquinoline ring-system (whether…). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Cryptocyanin?

CompoundList lists 1 supplier of Cryptocyanin in Taiwan. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

What is the price of Cryptocyanin?

Suppliers quote Cryptocyanin on request because prices depend on grade, purity, quantity and destination. A free request on CompoundList gets you several quotes to compare.

Guides for buyers

Practical guides that help when you source, ship or handle Cryptocyanin

Get quotes for Cryptocyanin

Post one free request with your grade, quantity and destination. Matching suppliers send quotes you can compare side by side.
Post a request Sell Cryptocyanin
Data last updated 7 Oct 2026. Details may have changed, please confirm them with the supplier. Report an error on this page
Embed this structure on your websiteShow code

Paste this code into your page to show the 2D structure of Cryptocyanin with a 3D view, its CAS number where known and a link back to this page. Free to use with the link kept.

<iframe src="https://www.compoundlist.com/embed/structure/cryptocyanin-4727-50-8" title="Cryptocyanin structure on CompoundList" width="360" height="420" style="border:1px solid #E7E2DA;border-radius:12px;max-width:100%" loading="lazy" referrerpolicy="strict-origin-when-cross-origin"></iframe>
Preview the embed

Explore more in Fluorescent dyes and stains or HS code 293349

1 supplier
Free quotes, contact stays private
Get quotes