Crocin IV (Dicrocin) is a crocin glycoside, a carotenoid pigment. Crocin IV has potent anti-oxidant effect.

Physicochemical Properties

Molecular Formula	C32H44O14
Molecular Weight	652.68
Exact Mass	652.273
CAS #	57710-64-2
PubChem CID	25244294
Appearance	Brown to reddish brown solid powder
Density	1.4±0.1 g/cm3
Boiling Point	879.8±65.0 °C at 760 mmHg
Flash Point	275.6±27.8 °C
Vapour Pressure	0.0±0.6 mmHg at 25°C
Index of Refraction	1.618
LogP	3.98
Hydrogen Bond Donor Count	8
Hydrogen Bond Acceptor Count	14
Rotatable Bond Count	14
Heavy Atom Count	46
Complexity	1150
Defined Atom Stereocenter Count	10
SMILES	C/C(=C\C=C\C=C(\C=C\C=C(\C(=O)O[C@@H]1O[C@@H]([C@H]([C@@H]([C@H]1O)O)O)CO)/C)/C)/C=C/C=C(/C(=O)O[C@@H]2O[C@@H]([C@H]([C@@H]([C@H]2O)O)O)CO)\C
InChi Key	QBZWPZHDUZGTLS-IIDMIUPYSA-N
InChi Code	InChI=1S/C32H44O14/c1-17(11-7-13-19(3)29(41)45-31-27(39)25(37)23(35)21(15-33)43-31)9-5-6-10-18(2)12-8-14-20(4)30(42)46-32-28(40)26(38)24(36)22(16-34)44-32/h5-14,21-28,31-40H,15-16H2,1-4H3/b6-5+,11-7+,12-8+,17-9+,18-10+,19-13+,20-14+/t21-,22-,23-,24-,25+,26+,27-,28-,31+,32+/m1/s1
Chemical Name	bis[(2S,3R,4S,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl] (2E,4E,6E,8E,10E,12E,14E)-2,6,11,15-tetramethylhexadeca-2,4,6,8,10,12,14-heptaenedioate
HS Tariff Code	2934.99.9001
Storage	Powder-20°C 3 years 4°C 2 years In solvent -80°C 6 months -20°C 1 month Note: This product requires protection from light (avoid light exposure) during transportation and storage.
Shipping Condition	Room temperature (This product is stable at ambient temperature for a few days during ordinary shipping and time spent in Customs)

Biological Activity

Targets	Human Endogenous Metabolite
ln Vitro	In PC12 cells, Crocin IV (Dicrocin; 10 μM; 24 hours) had minimal to no effect on prolonging cell survival[1]. When PC12 cells are hypoxic and serum-deprived, crocin IV increases the expression of γ-GCS mRNA[1]. At a dose of 10 μM, the neuroprotective potency of crocin, trirocin, diprocin, and picrocrocin is ranked in order of decreasing potency, with the latter two crocins having little to no effectiveness, according to measurements of cell survival, peroxidized membrane lipids, and caspase-3 activity[1].
References	[1]. Protective effects of carotenoids from saffron on neuronal injury in vitro and in vivo. Biochim Biophys Acta. 2007 Apr;1770(4):578-84.
Additional Infomation	Bis(beta-D-glucosyl) crocetin is a diester resulting from the formal condensation of each of the carboxylic acid groups of crocetin with an anomeric hydroxy group of beta-D-glucopyranose. It is a diester and a beta-D-glucoside. It is functionally related to a crocetin and a beta-D-glucose. Dicrocin has been reported in Crocus sativus with data available.

Solubility Data

Solubility (In Vitro)

May dissolve in DMSO (in most cases), if not, try other solvents such as H2O, Ethanol, or DMF with a minute amount of products to avoid loss of samples

Solubility (In Vivo)

Note: Listed below are some common formulations that may be used to formulate products with low water solubility (e.g. < 1 mg/mL), you may test these formulations using a minute amount of products to avoid loss of samples. Injection Formulations (e.g. IP/IV/IM/SC) Injection Formulation 1: DMSO : Tween 80： Saline = 10 : 5 : 85 (i.e. 100 μL DMSO stock solution → 50 μL Tween 80 → 850 μL Saline) *Preparation of saline: Dissolve 0.9 g of sodium chloride in 100 mL ddH ₂ O to obtain a clear solution. Injection Formulation 2: DMSO : PEG300 ：Tween 80 : Saline = 10 : 40 : 5 : 45 (i.e. 100 μL DMSO → 400 μLPEG300 → 50 μL Tween 80 → 450 μL Saline) Injection Formulation 3: DMSO : Corn oil = 10 : 90 (i.e. 100 μL DMSO → 900 μL Corn oil) Example: Take the Injection Formulation 3 (DMSO : Corn oil = 10 : 90) as an example, if 1 mL of 2.5 mg/mL working solution is to be prepared, you can take 100 μL 25 mg/mL DMSO stock solution and add to 900 μL corn oil, mix well to obtain a clear or suspension solution (2.5 mg/mL, ready for use in animals). Injection Formulation 4: DMSO : 20% SBE-β-CD in saline = 10 : 90 [i.e. 100 μL DMSO → 900 μL (20% SBE-β-CD in saline)] *Preparation of 20% SBE-β-CD in Saline (4°C，1 week): Dissolve 2 g SBE-β-CD in 10 mL saline to obtain a clear solution. Injection Formulation 5: 2-Hydroxypropyl-β-cyclodextrin : Saline = 50 : 50 (i.e. 500 μL 2-Hydroxypropyl-β-cyclodextrin → 500 μL Saline) Injection Formulation 6: DMSO : PEG300 : castor oil : Saline = 5 : 10 : 20 : 65 (i.e. 50 μL DMSO → 100 μLPEG300 → 200 μL castor oil → 650 μL Saline) Injection Formulation 7: Ethanol : Cremophor : Saline = 10： 10 : 80 (i.e. 100 μL Ethanol → 100 μL Cremophor → 800 μL Saline) Injection Formulation 8: Dissolve in Cremophor/Ethanol (50 : 50), then diluted by Saline Injection Formulation 9: EtOH : Corn oil = 10 : 90 (i.e. 100 μL EtOH → 900 μL Corn oil) Injection Formulation 10: EtOH : PEG300：Tween 80 : Saline = 10 : 40 : 5 : 45 (i.e. 100 μL EtOH → 400 μLPEG300 → 50 μL Tween 80 → 450 μL Saline) Oral Formulations Oral Formulation 1: Suspend in 0.5% CMC Na (carboxymethylcellulose sodium) Oral Formulation 2: Suspend in 0.5% Carboxymethyl cellulose Example: Take the Oral Formulation 1 (Suspend in 0.5% CMC Na) as an example, if 100 mL of 2.5 mg/mL working solution is to be prepared, you can first prepare 0.5% CMC Na solution by measuring 0.5 g CMC Na and dissolve it in 100 mL ddH2O to obtain a clear solution; then add 250 mg of the product to 100 mL 0.5% CMC Na solution, to make the suspension solution (2.5 mg/mL, ready for use in animals). Oral Formulation 3: Dissolved in PEG400 Oral Formulation 4: Suspend in 0.2% Carboxymethyl cellulose Oral Formulation 5: Dissolve in 0.25% Tween 80 and 0.5% Carboxymethyl cellulose Oral Formulation 6: Mixing with food powders Note: Please be aware that the above formulations are for reference only. InvivoChem strongly recommends customers to read literature methods/protocols carefully before determining which formulation you should use for in vivo studies, as different compounds have different solubility properties and have to be formulated differently.  (Please use freshly prepared in vivo formulations for optimal results.)

Preparing Stock Solutions		1 mg	5 mg	10 mg
	1 mM	1.5321 mL	7.6607 mL	15.3214 mL
	5 mM	0.3064 mL	1.5321 mL	3.0643 mL
	10 mM	0.1532 mL	0.7661 mL	1.5321 mL

*Note: Please select an appropriate solvent for the preparation of stock solution based on your experiment needs. For most products, DMSO can be used for preparing stock solutions (e.g. 5 mM, 10 mM, or 20 mM concentration); some products with high aqueous solubility may be dissolved in water directly. Solubility information is available at the above Solubility Data section. Once the stock solution is prepared, aliquot it to routine usage volumes and store at -20°C or -80°C. Avoid repeated freeze and thaw cycles.