Cap Analogs
GpppG triammonium salt
Quick view. GpppG triammonium salt is the ammonium form of the G(5')ppp(5')G dinucleotide for research on RNA-polymerase initiation and 5'-end incorporation. Formula and molecular weight below refer to the free-acid core. CAS 102783-44-8. Catalog target purity: ≥98%. Availability: Inquiry only — contact BX Lab to confirm current availability.
Structure
Structure form boundary. The displayed drawing omits catalog counterions and does not establish the complete supplied form, counterion stoichiometry or hydration state.
Identity of the displayed counterion-free structure
Scope. These values describe only the counterion-free structure shown above. They do not identify the complete catalog salt or establish counterion stoichiometry.
| Depicted identity | GpppG |
|---|---|
| Depicted form | Counterion-free structure |
| Source database | PubChem |
| PubChem CID | 135450902 |
| Molecular formula | C20H27N10O18P3 |
| Molecular weight | 788.4 g/mol |
| InChIKey | AAXYAFFKOSNMEB-MHARETSRSA-N |
Machine-readable identifiers for the displayed structure
| SMILES | C1=NC2=C(N1[C@H]3[C@@H]([C@@H]([C@H](O3)COP(=O)(O)OP(=O)(O)OP(=O)(O)OC[C@@H]4[C@H]([C@H]([C@@H](O4)N5C=NC6=C5N=C(NC6=O)N)O)O)O)O)N=C(NC2=O)N |
|---|---|
| InChI | InChI=1S/C20H27N10O18P3/c21-19-25-13-7(15(35)27-19)23-3-29(13)17-11(33)9(31)5(45-17)1-43-49(37,38)47-51(41,42)48-50(39,40)44-2-6-10(32)12(34)18(46-6)30-4-24-8-14(30)26-20(22)28-16(8)36/h3-6,9-12,17-18,31-34H,1-2H2,(H,37,38)(H,39,40)(H,41,42)(H3,21,25,27,35)(H3,22,26,28,36)/t5-,6-,9-,10-,11-,12-,17-,18-/m1/s1 |
Form boundary. The reviewed PubChem record establishes the counterion-free GpppG parent, not the complete catalog salt or counterion stoichiometry.
Identifier context
These notes preserve the current catalog identifiers while making their review boundary explicit.
CAS 102783-44-8 is preserved from the pre-existing triammonium catalog record and its cited references; this Batch472 parent-structure review does not independently revalidate it. The PubChem identifiers and representative drawing describe only the counterion-free GpppG parent; confirm counterion, stoichiometry, concentration and supplied form when requesting a quote.
Product profile
GpppG triammonium salt is classified as cap analogs.
GpppG triammonium salt — GpppG material for research on RNA-polymerase initiation and direct 5'-end incorporation.
For GpppG triammonium salt, capping outcome depends on polymerase system, cap-to-NTP ratio, transcript design and purification method.
Names and search terms
Confirmed or normalized name variants
- GpppG
- G(5')ppp(5')G triammonium salt
- Gp3G triammonium salt
- Diguanosine triphosphate triammonium salt
Useful catalog search terms
- G(5')ppp(5')G
- CAS 102783-44-8
- diguanosine triphosphate
Physicochemical data
| Salt CAS | 102783-44-8 (triammonium salt) |
|---|---|
| Related core CAS | 6674-45-9 (free acid) |
| Core molecular formula | C20H27N10O18P3 |
| Core molecular weight | 788.41 |
| Structural shorthand | G(5')ppp(5')G |
| CAS review status | CAS 102783-44-8 is preserved from the pre-existing triammonium catalog record and its cited references; this Batch472 parent-structure review does not independently revalidate it. The PubChem identifiers and representative drawing describe only the counterion-free GpppG parent; confirm counterion, stoichiometry, concentration and supplied form when requesting a quote. |
Release documentation
The current specification defines the analytical method and acceptance criteria; the released lot result is reported on the CoA.
Additional HPLC, MS or NMR documentation can be agreed during technical review where available.
Product-specific evaluation notes
Potential advantages
- Cap analog selection can influence capping efficiency, orientation and downstream translation-related performance.
Method limitations
- Capping outcome depends on polymerase system, cap-to-NTP ratio, transcript design and purification method.
These points describe GpppG triammonium salt or its named chemical feature. Broader product-family guidance is maintained on the category page.
Related products
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BX-CA-0003m7G(UNA)(5')ppp(5')(2'-OMeA)pG triammonium
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BX-CA-0004m7G(5')vppp(5')(2'-OMeA)pG triammonium
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BX-CA-0005CAP 6 m7G(LNA)(5')ppp(5')(2'OMeA)pG Triammonium Salt
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BX-CA-0006CAP 7 m7G(HNA)(5')ppp(5')(2'OMeA)pG Ammonium Salt
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Frequently asked questions
Can the package size for GpppG triammonium salt be customized?
Yes. Share the initial quantity, expected future scale, delivery timeline and packaging preference for review.
What information should be included in a quote request?
Quote catalog number BX-CA-0039 and CAS 102783-44-8, the intended research workflow, required quantity and any additional HPLC, MS or NMR documentation needed.
Product-family literature
These publications provide peer-reviewed context for the Cap Analogs product family and its named chemistry. They are background reading only, not evidence for the exact product, supplied form, lot specification, availability or performance.
Technology platforms
Catalog-derived platform membership for navigating related chemistry and verifiable product sets.