Crocin impurities and related standards

Crocin is held here as a working collection of 14 reference materials across 10 CAS numbers. Within the range, numbered impurities go up to 6. 3 of the entries are impurity-type materials of the parent. 10 entries carry a verified structure drawing, a coverage of 71%. 10 of them sit in tier A or B, meaning the data behind the page is complete enough to be indexed and quoted directly, while 4 remain tier C and are kept for search coverage. Method transfer is the usual reason a laboratory needs the whole set rather than a few members: specificity has to be demonstrated against every impurity that could plausibly co-elute, and a spiked solution prepared from the actual standards is the accepted way to do it. A certificate that names the synthetic route the standard was qualified against is more useful than one that only reports purity, since the same impurity can arise from two routes and only one of them will be present in a given product.

Sources: DailyMed (US NLM) - CROCIN MAX (ACETAMINOPHEN) CAPSULE, GELATIN COATED [OPMX LLC].

10 reference standards related to Crocin held in the RSSE catalogue — pharmacopoeial impurities, non-compendial impurities, metabolites and labelled analogues where available.

In this group: 8 fine chemicals · 1 multi-component standard · 1 impurity reference standard. CAS numbers are listed for 10 of 10; 10 entries carry a structure drawing.

On this page

10 reference standards

All entries — structure, identifiers and pack sizes

(2S,3R,4S,5S,6R)-3,4,5-trihydroxy-6-((((2R,3R,4S,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)tetrahydro-2H-pyran-2-yl)oxy)methyl)tetrahydro-2H-pyran-2-yl (2E,4E,6E,8E,10E,12E,14E)-2,6,11,15-tetramethyl-16-oxohexadeca-2,4,6,8,10,12,14-heptaenoate

CAS 1613377-24-4C32H44O13

BACK ORDERRS-U009666
1-((2S,3R,4S,5S,6R)-3,4,5-trihydroxy-6-((((2R,3R,4S,5S,6R)-3,4,5-trihydroxy-6-((((E)-3-(4-hydroxy-3,5-dimethoxyphenyl)acryloyl)oxy)methyl)tetrahydro-2H-pyran-2-yl)oxy)methyl)tetrahydro-2H-pyran-2-yl) 16-((2S,3R,4S,5S,6R)-3,4,5-trihydroxy-6-((((2R,3R,4S,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)tetrahydro-2H-pyran-2-yl)oxy)methyl)tetrahydro-2H-pyran-2-yl) (2E,4E,6E,8E,10E,12E,14E)-2,6,11,15-tetramethylhexadeca-2,4,6,8,10,12,14-heptaenedioate

CAS 2001062-78-6C55H74O28

BACK ORDERRS-U009729
bis((2S,3R,4S,5S,6R)-3,4,5-trihydroxy-6-((((2R,3R,4S,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)tetrahydro-2H-pyran-2-yl)oxy)methyl)tetrahydro-2H-pyran-2-yl) (2E,4E,6Z,8E,10E,12E,14E)-2,6,11,15-tetramethylhexadeca-2,4,6,8,10,12,14-heptaenedioate

CAS 91740-80-6C44H64O24

CUSTOM SYNTHESISRS-U091936
Crocin E

CAS 58050-17-2C26H34O9

MW 490.5

CUSTOM SYNTHESISRS-U045279
Crocin I

CAS 94238-00-3C44H64O24

MW 977

BACK ORDERRS-U045338
Crocin II

CAS 55750-84-0C38H54O19

MW 814.8

BACK ORDERRS-U045274
Crocin III

CAS 55750-85-1C32H44O14

MW 652.7

BACK ORDERRS-U045275
CrocinI

CAS 42553-65-1C44H64O24

MW 977

CUSTOM SYNTHESISRS-M127064
Dicrocin

CAS 57710-64-2C32H44O14

MW 652.69

BACK ORDERRS-U077818
Crocin Impurity 5

CAS 55750-86-2C27H36O9

MW 504.58

BACK ORDERRS-C748001

10 reference standards

Frequently asked

How many Crocin-related reference standards do you hold?

10 standards are listed on this page as of the latest catalogue build. CAS numbers are published for 10 of them and 10 entries carry a structure drawing. The catalogue is extended as new lots are released.

Can you supply a Crocin impurity that is not listed here?

Yes. Non-compendial impurities can be quoted from a structure — a CAS number is not required. Send the structure, a SMILES string or the parent drug substance with your enquiry and we will come back with availability.

What documentation is supplied with Crocin impurities?

Every lot ships with its own certificate of analysis. The certificate records the catalogue number, the batch number, the tests performed, the specification applied and the result obtained for that lot. A safety data sheet is supplied with the shipment.

Do you publish prices or a lead time for Crocin impurities?

No price list is published: quotations are prepared per enquiry, because availability and packing depend on the lot and the quantity you need. Send the catalogue number and the quantity and a technical contact will answer with availability and a quotation.

Cannot find the impurity you need? Non-compendial impurities can be quoted from a structure — a CAS number is not required. Write to sales@rssechem.com.