Didemnin BCAS 77327-05-0 · import duty, licences and trade rules in India
Didemnin B is a natural product found particularly in Lyngbya majuscula and Trididemnum solidum. For trade in India: OK to trade, but watch: global treaties & export markets. Import duty is about 27.73% (tariff item 2934 (estimate)).
Checked 2026-11-12 against official Indian and international lists. Sources are given under each answer.
What Didemnin B is, its uses, properties and related chemicals: Didemnin B on ChemXpress →
Every answer, with its source
Rules in IndiaOK
- Not on the Indian banned-pesticide, drug-precursor, narcotic, psychotropic or new-drug lists we check.
- Normal factory, storage and GST rules still apply.
Exporting from IndiaOK
- Not on the SCOMET export-control list or the precursor export list.
- The buyer’s country may still have its own import rules.
Global treaties & export marketsCHECK
- Not listed by the Stockholm Convention (persistent pollutants), the Rotterdam Convention (prior consent before export) or the Montreal Protocol (ozone layer).
- No EU REACH registration found: an EU importer (or your only representative) must register it before importing a tonne or more a year. Medicines and pesticide actives follow their own EU rules.
- Not on the US TSCA Inventory: EPA needs a premanufacture notice before it can be imported, unless it is a pesticide, drug or food additive, which TSCA does not cover.
Import dutyOK
- About ₹27,730 duty on every ₹1,00,000 of import value (CIF).
- No tariff line names this chemical, so we worked out its likely heading from its structure: 2934, nucleic acids and other heterocyclic compounds (ring containing N and O).
- All lines under heading 2934 pay basic customs duty 7.5%; with social welfare surcharge and IGST 18% that makes about 27.73%.
- No 8-digit line under heading 2934 names it, so it falls under one of its "Other" lines: 2934 92 00 (Other › Other fentanyls and their derivatives); 2934 99 90 (Other › Other). The other 7 lines are for named chemicals; which "Other" line applies depends on the exact structure.
- Confirm the exact 8-digit code with your customs broker before you import.
SafetyNO DATA
- No classification does not mean it is safe.
- Always read the supplier’s safety data sheet (SDS) before handling.
Price and suppliersNO DATA
- Post a requirement and we will find suppliers for you.
Key facts
| CAS number | 77327-05-0 |
|---|---|
| Formula | C57H89N7O15 |
| Also called | (2S)-N-[(2R)-1-[[(3S,6S,8S,12S,13R,16S,17R,20S,23S)-13-[(2S)-butan-2-yl]-12-hydroxy-20-[(4-methoxyphenyl)methyl]-6,17,21-trimethyl-3-(2-methylpropyl)-2,5,7,10,15,19,22-heptaoxo-8-propan-2-yl-9,18-dioxa-1,4,14,21-tetrazabicyclo[21.3.0]hexacosan-16-yl]amino]-4-methyl-1-oxopentan-2-yl]-1-[(2S)-2-hydroxypropanoyl]-N-methylpyrrolidine-2-carboxamide, Didemnin A, N-(1-(2-hydroxy-1-oxopropyl)-L-prolyl)-, (S)-, (2S)-N-((2R)-1-(((3S,6S,8S,12S,13R,16S,17R,20S,23S)-13-((2S)-butan-2-yl)-12-hydroxy-20-((4-methoxyphenyl)methyl)-6,17,21-trimethyl-3-(2-methylpropyl)-2,5,7,10,15,19,22-heptaoxo-8-propan-2-yl-9,18-dioxa-1,4,14,21-tetrazabicyclo(21.3.0)hexacosan-16-yl)amino)-4-methyl-1-oxopentan-2-yl)-1-((2S)-2-hydroxypropanoyl)-N-methylpyrrolidine-2-carboxamide, RefChem:586920 |
| Tariff item (HS) | 2934 (estimate) |
| Total import duty | about 27.73% |
| Anti-dumping duty (most producers) | None found |
| SCOMET (export control) | Not listed |
| NDPS / precursor | Not listed |
Questions about Didemnin B
What is the import duty on Didemnin B in India?
The total import duty on Didemnin B is about 27.73% of the import value under tariff item 2934 (estimate), including basic customs duty, the social welfare surcharge and IGST. Check the latest notifications before you import.
Is there anti-dumping duty on Didemnin B?
No anti-dumping duty on Didemnin B was found in the Customs (ADD) notifications in force.
What is the HS code (tariff item) of Didemnin B in India?
Didemnin B falls under tariff item 2934 (estimate) of the Customs Tariff of India.
Is Didemnin B restricted or licensed in India?
No special Indian ban or licence found. Not on the Indian banned-pesticide, drug-precursor, narcotic, psychotropic or new-drug lists we check. Normal factory, storage and GST rules still apply.
Does exporting Didemnin B from India need a licence?
No export licence needed. Not on the SCOMET export-control list or the precursor export list.
Is Didemnin B hazardous?
No hazard classification found. No classification does not mean it is safe. Always read the supplier’s safety data sheet (SDS) before handling.
Is Didemnin B regulated under global treaties or in the EU and US?
US: new chemical under TSCA. Not listed by the Stockholm Convention (persistent pollutants), the Rotterdam Convention (prior consent before export) or the Montreal Protocol (ozone layer). No EU REACH registration found: an EU importer (or your only representative) must register it before importing a tonne or more a year. Medicines and pesticide actives follow their own EU rules.
Related chemicals
Guidance from official lists, not legal advice. Rules change; confirm with DGFT, customs or the regulator before you trade.