Thymalin vs Thymosin Alpha-1
At 10mg, the only strength both are offered in, Thymalin is the cheaper per mg: $0.925 per mg against $2.170 (TY10 in 50-box lots, TA10). By the single box, Thymosin Alpha-1 is the only option, from $2.170 per mg at 10mg (TA10); every Thymalin line is special order. Thymalin is offered in 1 strength, Thymosin Alpha-1 in 3 (2mg to 10mg); Thymosin Alpha-1 has 1 on the shelf today, Thymalin none (special order, 50-box minimum). The least either takes: one box of TA5 at $115.64, against 50 boxes of TY10, $4,622.50 of goods.
Prices revised · USD per box of ten · freight included to US addresses from $1,000 of goods · COA per batch · research use only · New to us? What can be checked before you pay
What differs between Thymalin and Thymosin Alpha-1
One of these is a molecule and the other is a preparation, and that single fact governs what either certificate can say. Thymosin alpha-1 is a defined 28-residue synthetic peptide, N-acetylated, C129H215N33O55 at 3,108.3, CAS 62304-98-7. It has a calculated average mass, so its certificate reports a measured mass against that figure and a purity by RP-HPLC. Thymalin is a calf thymus-derived polypeptide preparation, a mixture of low-molecular-weight peptides running from roughly 600 to 6,000 daltons, quoted in the trade under CAS 63958-90-7 (in chemical registries the number denotes thymulin, a defined nonapeptide), and there is no single molecule in the vial to weigh. Its certificate carries no calculated mass and no single purity figure by RP-HPLC; it gives purity by size exclusion and SDS-PAGE, an endotoxin line and the net content. A buyer setting one purity figure beside the other is comparing two different measurements, not two grades of the same thing. Thymosin alpha-1 is listed in three strengths, thymalin in one, by special order.
| Detail | Thymalin | Thymosin Alpha-1 |
|---|---|---|
| Best per mg, by the box | Special order only | $2.170 per mg (TA10) |
| Best per mg, special order included | $0.925 per mg (TY10, 50 boxes) | $2.170 per mg (TA10) |
| Price per box sold singly | Special order only | $115.64 to $217.04 |
| In 50-box lots, per box | $92.45 | $50.90 |
| Strengths offered | 1: 10mg | 3: 2mg, 5mg, 10mg |
| Highest price per mg | $0.925 per mg (TY10, 50 boxes) | $2.545 per mg (TA2, 50 boxes) |
| On the shelf today | No, special order | 1 of 3 strengths |
| Range | Longevity & Nootropic | Longevity & Nootropic |
| Also called | No other name | thymalfasin and FF-51 |
| Form | Lyophilised powder | Lyophilised powder |
| Molecular weight | No single mass | 3,108.3 g/mol |
| CAS number | None assigned | 62304-98-7 |
| Release limit | Purity on the batch certificate; size exclusion and SDS-PAGE | Purity ≥ 98.0 % by RP-HPLC |
Each line’s own page: Thymalin and Thymosin Alpha-1. Reading either certificate: how each line is released. Checking a batch: verify a batch number. Every line priced: the price list. Checking another supplier’s quote: the price per mg calculator.
Strength for strength
Every strength both are offered in, per mg, the lower figure in bold; stock as this page was opened.
| Strength | Thymalin | Thymosin Alpha-1 |
|---|---|---|
| 10mg | $0.925 per mg (lower) (TY10, special order, 50 boxes) | $2.170 per mg (TA10, low stock) |
Every strength of both
Compared elsewhere
Questions
What is the difference between Thymalin and Thymosin Alpha-1?
One of these is a molecule and the other is a preparation, and that single fact governs what either certificate can say. Thymosin alpha-1 is a defined 28-residue synthetic peptide, N-acetylated, C129H215N33O55 at 3,108.3, CAS 62304-98-7.
Does thymalin’s size range take in thymosin alpha-1?
By mass, yes: at 3,108.3 it lies within the 600 to 6,000 daltons that thymalin’s peptides run across. They are still different kinds of material. Thymosin alpha-1 is one synthetic chain, prothymosin alpha’s opening 28 residues, its first serine acetylated, nine of them glutamates or aspartates against four lysines. Thymalin is extracted from calf thymus and standardised by total peptide content and by its size profile, so there is no one sequence to set beside it.
Which is cheaper per mg, Thymalin or Thymosin Alpha-1?
At 10mg, the only strength both are offered in, Thymalin is the cheaper per mg: $0.925 per mg against $2.170 (TY10 in 50-box lots, TA10).
Which comes in more strengths, Thymalin or Thymosin Alpha-1?
Thymosin Alpha-1, with 3 against 1. Every strength is a separate line with its own code, price and stock state.
Are Thymalin and Thymosin Alpha-1 made to the same specification?
No. Thymalin, a peptide preparation with no single mass, is released on size exclusion and SDS-PAGE against the limit stated on its batch certificate and identified against the reference standard by the method that certificate names. Thymosin Alpha-1 is released on an RP-HPLC purity of at least 98.0 percent and identified by mass against its calculated 3,108.3. Both carry net content within 5 percent of label and a retest date on the batch record.
Structural facts from each compound’s sheet and profile; prices and stock from the list at the moment this page was opened. How to compare strengths on price.