Canonical ingredient

L-Cysteine

L-CYSTEINE

310 linked products

Official identifiers

CAS 52-90-4 NHPID_ID 7278

Names and synonyms

L-Cysteine (en)
L-Cysteine (fr)
L-cystéine (fr)
2-Cystéine (fr-CA)

Source-scoped chemical properties

Every value keeps its own authority, licence and retrieval date. Conflicting values are not silently merged.

canada dsl listing: listed; canada_dsl_categorization · Open Government Licence - Canada 2.0 · 2026-08-03
dsl bioaccumulative: No; canada_dsl_categorization · Open Government Licence - Canada 2.0 · 2026-08-03
dsl inherently toxic aquatic: No; canada_dsl_categorization · Open Government Licence - Canada 2.0 · 2026-08-03
dsl meets cepa categorization: No; canada_dsl_categorization · Open Government Licence - Canada 2.0 · 2026-08-03
dsl meets environmental: No; canada_dsl_categorization · Open Government Licence - Canada 2.0 · 2026-08-03
dsl meets human health: No; canada_dsl_categorization · Open Government Licence - Canada 2.0 · 2026-08-03
dsl persistent: No; canada_dsl_categorization · Open Government Licence - Canada 2.0 · 2026-08-03
dsl substance category: Organics; canada_dsl_categorization · Open Government Licence - Canada 2.0 · 2026-08-03

Equivalent concepts in other registries

These links require an exact shared identifier; names alone are never sufficient.

L -cysteine
GLOBAL · CAS 52-90-4
Verification source

Safety and technical documents

General references and manufacturer-specific SDS documents are kept separate.

0 document(s)

No verified SDS or technical sheet is linked yet. This absence is explicit and does not mean that no document exists.

End-to-end traceability

Only links supported by an identified source are published. Missing evidence remains explicitly unknown.

Partial chain

Evidence still missing

Country or region of origin
Raw-material producer
Ingredient manufacturer
Distributor
Transformation steps

Method: a company’s registration country is never used as evidence of a material’s origin.

Products containing this ingredient

25 billion immune support

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ADRIEN GAGNON FEMINEX CHEVEUX ET ONGLES/HAIR AND NAILS

50 · milligrams

ADRIEN GAGNON FEMINEX CHEVEUX ET ONGLES/HAIR AND NAILS 500mcg Biotin

100 · milligrams

ADRIEN GAGNON FEMINEX CHEVEUX ET ONGLES/HAIR AND NAILS PREMIUM 500mcg Biotin

AGE SIGNES DEFENSE SPF 15

AMINODERM POUDRE

Absorb Plus - Caramel Toffee Twist

19.75 · milligrams

Absorb Plus - Chocolate Royale

19.75 · milligrams

Absorb Plus - Chocolate Royale

19.75 · milligrams

Absorb Plus - French Vanilla

19.75 · milligrams

Absorb Plus - Mocha Grande

19.75 · milligrams

Absorb Plus - Natural Berry Flavour

19.75 · milligrams

Absorb Plus - Natural Berry Flavour

19.75 · milligrams

Absorb Plus - Simply Berry Flavour

19.75 · milligrams

Absorb Plus - Simply Chocolate Flavour

Absorb Plus - Simply Vanilla Flavour

Absorb Plus - Simply Vanilla Flavour

19.75 · milligrams

Absorb Plus - Unsweetened Vanilla

19.75 · milligrams

Absorb Plus - Unsweetened Vanilla

19.75 · milligrams

Absorb Plus Amino

Adrien Gagnon NMN 15000 Women

Agony Amino 9000

Agony L-Glutamine

Albumin Complex Gold

Alkahest Cysteine+B6

Arca Highmed Hair Skin & Nail Capsules

BABY COLIC LIQUID DROPS PROBIOTIC

BABY COLIC LIQUID DROPS PROBIOTIC

BABY COLIC LIQUID DROPS PROBIOTIC

BABY COLIC LIQUID DROPS PROBIOTIC

BABY COLIC LIQUID DROPS PROBIOTIC+Vit D 400 IU

BABY COLIC LIQUID PROBIOTIC+Algal DHA

BABY COLIC PROBIOTIC LIQUID DROPS+Vit D 400 IU+LACTOFERRIN

325 · milligrams

BIOTIX ENFANTS 2 MILLIARDS 5 GOUTTES

Baby Probiotic by Ddrops® Company

Beauty Glow Capsule

25 · milligrams

Bio-Detox Packs